Login   |   Create New Account sales@aaronchem.com

Structure Search
Home > Products> 80-92-2
80-92-2

5β-Pregnane-3α,20α-diol

Catalog#: AR0034W2  |   CAS#: 80-92-2  |   MDL#: MFCD00064141  |   MF: C21H36O2  |   MW: 320.5093

Packsize Purity Price Availability Quantity
100mg 95% $101.00 Global Stock Buy Now Add To Cart
250mg 95% $188.00 Global Stock Buy Now Add To Cart
Bulk Quotation Request
  • Description
  • Related Products
  • Featured Products
  • Safety Information
Catalog Number AR0034W2
Chemical Name 5β-Pregnane-3α,20α-diol
CAS Number 80-92-2
Molecular Formula C21H36O2
Molecular Weight 320.5093
MDL Number MFCD00064141
SMILES O[C@@H]1CC[C@]2([C@@H](C1)CC[C@@H]1[C@@H]2CC[C@]2([C@H]1CC[C@@H]2[C@@H](O)C)C)C
1454-84-8

1-Nonadecanol

1454-84-8

Product Details
151-19-9

3-Octanol, 3,6-dimethyl-

151-19-9

Product Details
163119-16-2

Cyclohexanol, 2,6-bis(1,1-dimethylethyl)-4-methyl-

163119-16-2

Product Details
126147-11-3

1-Dodecanol, 2-propyl-

126147-11-3

Product Details
10042-59-8

1-Heptanol, 2-propyl-

10042-59-8

Product Details
116-02-9

Cyclohexanol, 3,3,5-trimethyl-

116-02-9

Product Details
14064-13-2

Cyclohexanemethanol, 1-methyl-

14064-13-2

Product Details
123-96-6

2-Octanol

123-96-6

Product Details
13254-34-7

2-Heptanol, 2,6-dimethyl-

13254-34-7

Product Details
1393450-96-8

Spiro[3.5]nonan-7-ol

1393450-96-8

Product Details
10203-28-8

2-Dodecanol

10203-28-8

Product Details
123-17-1

4-Nonanol, 2,6,8-trimethyl-

123-17-1

Product Details
102369-67-5

Cyclohexanemethanol, 3,3-dimethyl-

102369-67-5

Product Details
14648-57-8

Tricyclo[3.3.1.13,7]decan-2-ol, 2-ethyl-

14648-57-8

Product Details
15753-50-1

1,2-Cyclohexanedimethanol, (1R,2S)-rel-

15753-50-1

Product Details
1462-96-0

Cyclopentanol, 1-ethyl-

1462-96-0

Product Details
1454-85-9

Heptadecan-1-ol

1454-85-9

Product Details
100-49-2

Cyclohexanemethanol

100-49-2

Product Details
15890-36-5

Cyclohexanol, 4-(1-methylethyl)-, trans-

15890-36-5

Product Details
15753-47-6

Cyclohexanemethanol, 1-hydroxy-

15753-47-6

Product Details
107-74-4

1,7-Octanediol, 3,7-dimethyl-

107-74-4

Product Details
1193-46-0

Cyclohexanol, 2,2-dimethyl-

1193-46-0

Product Details
14451-86-6

Tricyclo[3.3.1.13,7]decan-2-ol, 2-butyl-

14451-86-6

Product Details
124899-25-8

1,4-Cyclohexanediol, 1-Methyl-, cis-

124899-25-8

Product Details
1193-81-3

Cyclohexanemethanol, α-methyl-

1193-81-3

Product Details
15594-90-8

Heneicosanol

15594-90-8

Product Details
28979-29-5

Cholane-3,7,12,24-tetrol, (3α,5α,7α,12α)-

28979-29-5

Product Details
3637-61-4

Cyclopentanemethanol

3637-61-4

Product Details
23708-56-7

6-Undecanol

23708-56-7

Product Details
19780-40-6

2-Heptanol, 5-ethyl-

19780-40-6

Product Details
112-42-5

1-Undecanol

112-42-5

Product Details
21078-65-9

1-Decanol, 2-ethyl-

21078-65-9

Product Details
28484-70-0

1-Tetratriacontanol

28484-70-0

Product Details
82575-70-0

Trans-4-(Trans-4-Pentylcyclohexyl)Cyclohexanol

82575-70-0

Product Details
1653-40-3

6-METHYL-1-HEPTANOL

1653-40-3

Product Details
3236-48-4

trans-1,4-Cyclohexanedimethanol

3236-48-4

Product Details
3205-34-3

(1S,2S)-1,2-CyclohexanediMethanol

3205-34-3

Product Details
2768-12-9

1-Heptanol, 2,6-dimethyl-

2768-12-9

Product Details
78-69-3

3,7-Dimethyloctan-3-ol

78-69-3

Product Details
3564-98-5

rel-(1R,2R,4R)-2-Hydroxy-α,α,4-trimethylcyclohexanemethanol

3564-98-5

Product Details
25144-05-2

Cyclopentanol, 2-methyl-, (1R,2S)-rel-

25144-05-2

Product Details
30444-76-9

1,10-Decanediol, homopolymer

30444-76-9

Product Details
19781-62-5

Cyclohexanol, 4-ethyl-, trans-

19781-62-5

Product Details
7735-42-4

1,16-Hexadecanediol

7735-42-4

Product Details
589-91-3

4-Methylcyclohexanol

589-91-3

Product Details
22422-34-0

(1R,2R,3S,5R)-(-)-2,3-Pinanediol

22422-34-0

Product Details
2451-01-6

Cyclohexanemethanol, 4-hydroxy-α,α,4-trimethyl-, hydrate (1:1), cis-

2451-01-6

Product Details
112-30-1

Decyl alcohol

112-30-1

Product Details
5986-55-0

(1R,4S,4aS,6R,8aS)-Octahydro-4,8a,9,9-tetramethyl-1,6-methanonaphthalen-1(2H)-ol

5986-55-0

Product Details
1653-35-6

8-​Pentadecanol

1653-35-6

Product Details
5337-72-4

2,6-Dimethylcyclohexanol

5337-72-4

Product Details
3155-43-9

OCTADECANE-1,18-DIOL

3155-43-9

Product Details
112-92-5

1-Octadecanol

112-92-5

Product Details
16664-07-6

Cyclohexanemethanol, α,α-dimethyl-

16664-07-6

Product Details
20601-38-1

[1,1'-Bicyclohexyl]-4,4'-diol

20601-38-1

Product Details
2216-51-5

(1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol

2216-51-5

Product Details
20098-16-2

Tricyclo[3.3.1.13,7]decane-1,4-diol

20098-16-2

Product Details
112-53-8

1-Dodecanol

112-53-8

Product Details
590-67-0

1-Methylcyclohexanol

590-67-0

Product Details
557-61-9

1-Octacosanol

557-61-9

Product Details
20194-45-0

1-Undecanol, 10-methyl-

20194-45-0

Product Details
2105-40-0

Cyclohexanemethanol, 2-methyl-

2105-40-0

Product Details
26248-42-0

TRIDECANOL

26248-42-0

Product Details
19812-64-7

1,14-Tetradecanediol

19812-64-7

Product Details
90676-25-8

2-n-Propylcyclohexanol

90676-25-8

Product Details
4621-04-9

4-Iso-propylcyclohexanol

4621-04-9

Product Details
4534-74-1

4-Ethylcyclohexanol

4534-74-1

Product Details
111-70-6

Heptan-1-ol

111-70-6

Product Details
70568-60-4

4-Butylcyclohexanol

70568-60-4

Product Details
34885-03-5

4-Methyl-1-cyclohexanemethanol

34885-03-5

Product Details
593-50-0

Triacontan-1-ol

593-50-0

Product Details
1124-63-6

3-Cyclohexylpropan-1-ol

1124-63-6

Product Details
85712-05-6

2,5-Dimethyl-1-heptanol

85712-05-6

Product Details
6531-86-8

2-Cyclohexylcyclohexanol

6531-86-8

Product Details
17264-02-7

1-Cyclohexyl-1-propanol

17264-02-7

Product Details
38584-37-1

3-(Hydroxymethyl)-1-Adamantol

38584-37-1

Product Details
111-87-5

Capryl Alcohol

111-87-5

Product Details
5978-70-1

(R)-Octan-2-ol

5978-70-1

Product Details
825-51-4

decahydronaphthalen-2-ol

825-51-4

Product Details
2430-22-0

7-Methyl-octanol

2430-22-0

Product Details
767-05-5

3-Cyclopentyl-1-Propanol

767-05-5

Product Details
33893-85-5

4-(Hydroxymethyl)cyclohexanol (cis- and trans- mixture)

33893-85-5

Product Details
7731-29-5

trans-4-methylcyclohexanol

7731-29-5

Product Details
583-59-5

2-Methylcyclohexanol

583-59-5

Product Details
1940-18-7

1-Ethylcyclohexanol

1940-18-7

Product Details
933-48-2

Cis-3,3,5-Trimethylcyclohexanol

933-48-2

Product Details
5715-23-1

3,4-Dimethylcyclohexanol

5715-23-1

Product Details
2425-77-6

2-Hexyl-1-decanol

2425-77-6

Product Details
1724-39-6

Cyclododecanol

1724-39-6

Product Details
593-03-3

Hexadecan-3-ol

593-03-3

Product Details
3809-32-3

2,5-Dimethylcyclohexanol

3809-32-3

Product Details
54410-90-1

4-Pentylcyclohexanol

54410-90-1

Product Details
4453-82-1

Dicyclohexylmethanol

4453-82-1

Product Details
31762-64-8

Poly(oxy-1,8-octanediyl), α-hydro-ω-hydroxy-

31762-64-8

Product Details
57803-73-3

(S)-(+)-5-METHYL-1-HEPTANOL

57803-73-3

Product Details
57514-69-9

Poly(oxy-1,7-heptanediyl), α-hydro-ω-hydroxy-

57514-69-9

Product Details
99181-50-7

adamantane-1,3,5-triol

99181-50-7

Product Details
702-98-7

2-Methyladamantan-2-ol

702-98-7

Product Details
4730-22-7

6-Methylheptan-2-ol

4730-22-7

Product Details
26919-42-6

(3,5-Dimethyladamantan-1-yl)methanol

26919-42-6

Product Details
707-37-9

3,5-Dimethyladamantan-1-ol

707-37-9

Product Details
13362-52-2

1,13-Tridecanediol

13362-52-2

Product Details
18680-27-8

(1S,2S,3R,5S)-(+)-2,3-Pinanediol

18680-27-8

Product Details
629-76-5

Pentadecan-1-ol

629-76-5

Product Details
112-72-1

tetradecan-1-ol

112-72-1

Product Details
4442-79-9

2-Cyclohexylethanol

4442-79-9

Product Details
21862-63-5

Trans-4-Tert-Butylcyclohexanol

21862-63-5

Product Details
5675-51-4

Dodecane-1,12-diol

5675-51-4

Product Details
765-04-8

Undecane-1,11-diol

765-04-8

Product Details
849671-56-3

Spiro[2.5]octan-6-ylmethanol

849671-56-3

Product Details
80-04-6

4,4'-Isopropylidenedicyclohexanol

80-04-6

Product Details
143-08-8

Nonan-1-ol

143-08-8

Product Details
1604-02-0

1-Propylcyclopentanol

1604-02-0

Product Details
3937-56-2

Nonane-1,9-diol

3937-56-2

Product Details
24070-77-7

2-METHYLCYCLOPENTANOL

24070-77-7

Product Details
108-93-0

Cyclohexanol

108-93-0

Product Details
2433-14-9

[1,1'-Bi(cyclohexan)]-4-ol

2433-14-9

Product Details
52204-65-6

4-Propylcyclohexanol

52204-65-6

Product Details
506-51-4

1-Tetracosanol

506-51-4

Product Details
34131-99-2

6-Isopropyldecahydronaphthalen-2-ol

34131-99-2

Product Details
135441-88-2

rac Geosmin-d3

135441-88-2

Product Details
77-53-2

(+)-Cedrol

77-53-2

Product Details
82832-72-2

(trans,trans)-4'-Propyl-[1,1'-bi(cyclohexan)]-4-ol

82832-72-2

Product Details
3937-49-3

Cyclohexanemethanol, 4-methyl-, trans-

3937-49-3

Product Details
775-64-4

2-Adamantan-1-yl-propan-2-ol

775-64-4

Product Details
767-12-4

Cyclohexanol,3,3-dimethyl-

767-12-4

Product Details
38966-21-1

(+)-Aphidicolin

38966-21-1

Product Details
17071-62-4

Adamantane-1,3-diyldimethanol

17071-62-4

Product Details
7146-78-3

2-(2-ethylbutyl)cyclohexanol

7146-78-3

Product Details
3552-01-0

Cyclohexanol, 1-(1-methylethyl)-

3552-01-0

Product Details
77189-05-0

Cyclohexanol,2-(2-ethylhexyl)-

77189-05-0

Product Details
13350-81-7

spiro[4.4]nonan-1-ol

13350-81-7

Product Details
1462-06-2

Cyclopentanemethanol, a,a-dimethyl-

1462-06-2

Product Details
696-71-9

Cyclooctanol

696-71-9

Product Details
87383-23-1

2-Hexadecanol, 2-methyl-

87383-23-1

Product Details
4104-59-0

7-Pentadecanol

4104-59-0

Product Details
18684-63-4

bicyclo[2.2.2]octan-7-ol

18684-63-4

Product Details
80121-65-9

2,2'-(Adamantane-1,3-diyl)diethanol

80121-65-9

Product Details
1965310-35-3

(4,4-dimethylcyclohexyl)methanediol

1965310-35-3

Product Details
22428-83-7

piro[2.5]octan-6-ol

22428-83-7

Product Details
18341-84-9

1-(1-ADAMANTYL)PROPAN-1-OL

18341-84-9

Product Details
38432-77-8

2-Isopropyl-2-adamantanol

38432-77-8

Product Details
818-81-5

2-Methyloctan-1-ol

818-81-5

Product Details
1612191-86-2

BAR 502

1612191-86-2

Product Details
1632118-69-4

BAR 501

1632118-69-4

Product Details
89489-26-9

Bicyclo[3.1.0]hexan-3-ol

89489-26-9

Product Details
38514-05-5

6-​Methyl-1-​octanol

38514-05-5

Product Details
817-91-4

1-HEPTANOL, 4-METHYL-

817-91-4

Product Details
26750-08-3

1-(1-ADAMANTYL)ETHANOL

26750-08-3

Product Details
74356-31-3

4-Nonanol,2,4-dimethyl-

74356-31-3

Product Details
29474-12-2

cimepanol

29474-12-2

Product Details
5441-52-1

3,5-Dimethylcyclohexanol

5441-52-1

Product Details
69542-91-2

2,4-Dimethylcyclohexanol

69542-91-2

Product Details
42822-86-6

p-Menthane-3,8-diol

42822-86-6

Product Details
51079-52-8

2-Heptanol, 4,6-dimethyl-

51079-52-8

Product Details
4534-76-3

NSC21115

4534-76-3

Product Details
5502-75-0

4-(1-Methylethyl)cyclohexanemethanol

5502-75-0

Product Details
5442-00-2

2-CYCLOHEXYL-1-PROPANOL

5442-00-2

Product Details
543-49-7

2-Heptanol

543-49-7

Product Details
624-08-8

9-Heptadecanol

624-08-8

Product Details
41083-73-2

5α-Cholestane-3β,6α-diol

41083-73-2

Product Details
529-32-8

Decahydro-1-naphthol

529-32-8

Product Details
694-43-9

cis-Bicyclo[3.1.0]hexan-3-ol

694-43-9

Product Details
55505-28-7

1-Decanol, 9-methyl-

55505-28-7

Product Details
628-44-4

2-Methyl-2-octanol

628-44-4

Product Details
3396-02-9

2-METHYL DECANOL-2

3396-02-9

Product Details
498-81-7

Dihydroterpineol

498-81-7

Product Details
5333-42-6

1-​Dodecanol, 2-​octyl-

5333-42-6

Product Details
82562-85-4

(trans,trans)-4'-Propyl-[1,1'-bicyclohexyl]-4-methanol

82562-85-4

Product Details
5001-18-3

Tricyclo[3.3.1.13,7]decane-1,3-diol

5001-18-3

Product Details
15356-60-2

Cyclohexanol, 5-methyl-2-(1-methylethyl)-, (1S,2R,5S)-

15356-60-2

Product Details
2574-42-7

Bicyclo[2.2.2]octane-1-methanol

2574-42-7

Product Details
68526-85-2

Alcohols, C9-11-iso-,C10-rich

68526-85-2

Product Details
98-52-2

Cyclohexanol, 4-(1,1-dimethylethyl)-

98-52-2

Product Details
76019-90-4

CYCLOHEXANEPROPANOL, BETA-METHYL-

76019-90-4

Product Details
55539-04-3

Cyclohexanol, 1,3-dimethyl-

55539-04-3

Product Details
37617-33-7

2,2-dimethylcyclopentan-1-ol

37617-33-7

Product Details
112650-62-1

1-Cyclohexylcyclopropan-1-ol

112650-62-1

Product Details
376642-41-0

(4-butylcyclohexyl)methanol

376642-41-0

Product Details
1423031-72-4

2-Cyclopentyl-2-methylpropan-1-ol

1423031-72-4

Product Details
4916-86-3

2-(3-methylcyclohexyl)ethan-1-ol

4916-86-3

Product Details
1423040-72-5

(1R)-1-(4,4-dimethylcyclohexyl)ethan-1-ol

1423040-72-5

Product Details
5364-87-4

1,4,4-trimethylcyclohexan-1-ol

5364-87-4

Product Details
851779-49-2

1-cyclohexyl-1-cyclopropylethan-1-ol

851779-49-2

Product Details
53018-27-2

(3-methylcyclohexyl)methanol

53018-27-2

Product Details
51166-20-2

15-methyl hexadecan-1-ol

51166-20-2

Product Details
3113-98-2

(1S)-1-CYCLOHEXYLETHAN-1-OL

3113-98-2

Product Details
1341436-05-2

2-(3,5-dimethylcyclohexyl)ethan-1-ol

1341436-05-2

Product Details
96-07-1

2-(Propan-2-yl)cyclohexan-1-ol

96-07-1

Product Details
122382-79-0

(1R)-1-cyclopentylethan-1-ol

122382-79-0

Product Details
1248312-70-0

1-Cyclopentylcyclopropan-1-ol

1248312-70-0

Product Details
1502312-69-7

{3-methylbicyclo[3.1.0]hexan-3-yl}methanol

1502312-69-7

Product Details
1342663-72-2

2-(3-methylcyclohexyl)cyclohexan-1-ol

1342663-72-2

Product Details
6221-36-9

[(1R,3r,5S)-bicyclo[3.1.0]hexan-3-yl]methanol

6221-36-9

Product Details
74458-65-4

[(1R,3S)-1,2,2,3-Tetramethylcyclopentyl]methanol

74458-65-4

Product Details
59182-38-6

1-(Hydroxymethyl)adamantan-2-ol

59182-38-6

Product Details
15972-13-1

1-cyclohexyl-2,2-dimethylpropan-1-ol

15972-13-1

Product Details
1803610-89-0

2-[4-(2-methylbutan-2-yl)cyclohexyl]ethan-1-ol

1803610-89-0

Product Details
81980-07-6

(2,2-Dimethylcyclohexyl)methanol

81980-07-6

Product Details
1546780-44-2

1-(Hydroxymethyl)-3,3-dimethylcyclohexan-1-ol

1546780-44-2

Product Details
91377-01-4

3-methyldodecan-1-ol

91377-01-4

Product Details
18369-20-5

1-(2-methylpropyl)cyclopentan-1-ol

18369-20-5

Product Details
1318951-91-5

(1-pentylcyclohexyl)methanol

1318951-91-5

Product Details
1653-37-8

2-METHYL-2-DODECANOL

1653-37-8

Product Details
38231-91-3

2-Methyltetradecan-1-ol

38231-91-3

Product Details
325705-62-2

(2,2-dimethylcyclopentyl)methanol

325705-62-2

Product Details
103478-23-5

[rac-(1R,5S)-5-(hydroxymethyl)bicyclo[3.1.0]hexan-1-yl]methanol, cis

103478-23-5

Product Details
3208-05-7

decane-1,9-diol

3208-05-7

Product Details
39947-48-3

(1S,2S)-2-methylcyclopentanol

39947-48-3

Product Details
27373-94-0

[(1R,2S,5R)-5-methyl-2-(propan-2-yl)cyclohexyl]methanol

27373-94-0

Product Details
3313-85-7

BICYCLO[3.1.0]HEXAN-6-YLMETHANOL, Mixture of diastereomers

3313-85-7

Product Details
3187-28-8

2-[1-(hydroxymethyl)cyclohexyl]ethan-1-ol

3187-28-8

Product Details
32986-43-9

TRICYCLO[3.2.1.0(2,4)]OCTAN-6-OL

32986-43-9

Product Details
2612-32-0

2-Cyclohexylpropane-1,3-diol

2612-32-0

Product Details
16613-81-3

(1R,3s,5S)-6,6-dimethylbicyclo[3.1.0]hexan-3-ol

16613-81-3

Product Details
75658-83-2

rac[(1R,2S)-2-(hydroxymethyl)cyclopentyl]methanol

75658-83-2

Product Details
91410-69-4

(1R)-1-(Adamantan-1-yl)ethan-1-ol

91410-69-4

Product Details
1383823-45-7

{bicyclo[4.1.0]heptan-3-yl}methanol

1383823-45-7

Product Details
1632118-70-7

4,5,6-Triaminopyrimidine

1632118-70-7

Product Details
62609-35-2

{bicyclo[4.1.0]heptan-1-yl}methanol

62609-35-2

Product Details
93658-33-4

heptadecan-7-ol

93658-33-4

Product Details
194484-35-0

2-cyclopentylpropane-1,3-diol

194484-35-0

Product Details
4916-87-4

2-(4-METHYLCYCLOHEXYL)ETHAN-1-OL, Mixture of diastereomers

4916-87-4

Product Details
348633-12-5

[(1S,5S)-6,6-dimethylbicyclo[3.1.1]heptan-2-yl]methanol

348633-12-5

Product Details
60320-28-7

2-methyl-5-(propan-2-yl)cyclohexan-1-ol

60320-28-7

Product Details
40894-17-5

1-(2-Hydroxyethyl)cyclohexanol

40894-17-5

Product Details
151825-19-3

2-[(1R,2S,5R)-6,6-dimethylbicyclo[3.1.1]heptan-2-yl]ethan-1-ol

151825-19-3

Product Details
1600253-35-7

Bicyclo[3.1.0]hexane-6-methanol, α-methyl-

1600253-35-7

Product Details
1430752-03-6

[1-(2-METHYLPROPYL)CYCLOHEXYL]METHANOL

1430752-03-6

Product Details
6226-39-7

bicyclo[4.1.0]heptan-7-ylmethanol

6226-39-7

Product Details
5732-93-4

4-Cyclopentylbutan-1-ol

5732-93-4

Product Details
1240725-66-9

1H-Pyrazolo[3,4-b]pyridine, 5-chloro-

1240725-66-9

$10.00/25mg, $11.00/100mg, $20.00/250mg, $37.00/500mg, $70.00/1g, $295.00/5g, $537.00/10g, $1,299.00/25g,

Product Details
1245816-07-2

Boronic acid, B-(7-methyl-1H-indazol-5-yl)-

1245816-07-2

$29.00/100mg, $50.00/250mg, $131.00/1g, $438.00/5g, $815.00/10g, $1,629.00/25g,

Product Details
1312309-63-9

3-[2-(2-Azidoethoxy)ethoxy]propanoic acid

1312309-63-9

$5.00/100mg, $8.00/250mg, $26.00/1g, $103.00/5g, $198.00/10g, $475.00/25g, $883.00/50g,

Product Details
81353-38-0

Trimethyl((tributylstannyl)ethynyl)silane

81353-38-0

$4.00/100mg, $7.00/250mg, $23.00/1g, $87.00/5g, $156.00/10g, $347.00/25g, $589.00/50g, $935.00/100g,

Product Details
21575-91-7

Benzenepropanoic acid,3-bromo-b-oxo-, ethyl ester

21575-91-7

$4.00/250mg, $9.00/1g, $39.00/5g, $66.00/10g, $139.00/25g, $433.00/100g,

Product Details
625446-22-2

4-Bromo-2-Fluoroacetophenone

625446-22-2

$3.00/250mg, $4.00/1g, $11.00/5g, $18.00/10g, $40.00/25g, $148.00/100g,

Product Details
GHS Pictogram
Signal Word Warning
UN# N/A
Hazard Statements H302
Precautionary Statements P280-P305+P351+P338
Class N/A
Packing Group N/A

Home| Products| Terms & Conditions| Ordering & Shipping| Company| Contact us

© 2019 Aaron Chemicals LLC. All Rights Reserved.