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70741-38-7

Basic Information
CAS No.: 70741-38-7
Name: (3S,10S,13R,14R,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol
Article Data: 4
Molecular Structure:
Molecular Structure of 70741-38-7 ((3S,10S,13R,14R,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol)
Formula: C27H44 O
Molecular Weight: 384.646
Synonyms: 8-Dehydrocholesterol;Cholesta-5,8-dien-3b-ol
Density: 1g/cm3
Melting Point: 147-148 °C(Solv: chloroform (67-66-3); acetone (67-64-1))
Boiling Point: 492.1°C at 760 mmHg
Flash Point: 211.8°C
PSA: 20.23000
LogP: 7.45290
Synthetic route
53435-19-1

3β-benzoyloxy-cholesta-5,8-diene

70741-38-7

cholesta-5,8(9)-dien-3β-ol

Conditions
ConditionsYield
With potassium hydroxide; benzene
3914-89-4

7α-cholesta-5,8-dien-3β-yl acetate

70741-38-7

cholesta-5,8(9)-dien-3β-ol

Conditions
ConditionsYield
With lithium In various solvent(s) at -20℃; 30 min longer than required for the initial apperance of a blue color; Yield given;
1059-86-5

7-Dehydrocholesteryl acetate

70741-38-7

cholesta-5,8(9)-dien-3β-ol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: benzene / 4 h / Heating
2: Li / various solvent(s) / -20 °C / 30 min longer than required for the initial apperance of a blue color
View Scheme
26048-46-4

7α-bromocholest-5-en-3β-ol benzoate

70741-38-7

cholesta-5,8(9)-dien-3β-ol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: ammonium thiocyanate; acetone
2: benzene; methanol. KOH
View Scheme
Multi-step reaction with 2 steps
1: pyridine
2: benzene; methanol. KOH
View Scheme
65942-28-1

7β-bromocholest-5-en-3β-ol benzoate

70741-38-7

cholesta-5,8(9)-dien-3β-ol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: pyridine
2: benzene; methanol. KOH
View Scheme
434-16-2

7-dehydrocholesterol

70741-38-7

cholesta-5,8(9)-dien-3β-ol

Conditions
ConditionsYield
Stage #1: 7-dehydrocholesterol With diethylazodicarboxylate In toluene at 116℃; for 0.75h; Molecular sieve; Microwave irradiation;
Stage #2: With propylamine; lithium; ethylenediamine at 0℃; for 0.25h;
79 mg
70741-38-7

cholesta-5,8(9)-dien-3β-ol

259659-60-4

cholesta-5,8-dien-3-one

Conditions
ConditionsYield
With oxalyl dichloride; dimethyl sulfoxide; triethylamine In dichloromethane at -50℃; for 1h; Oxidation;83%
70741-38-7

cholesta-5,8(9)-dien-3β-ol

1249-85-0, 1249-86-1

1,6-cyclo-1,10-seco-cholesta-5,7,9-trien-3ξ-ol

Conditions
ConditionsYield
With mercury(II) diacetate; toluene-4-sulfonic acid Irradiation;
70741-38-7

cholesta-5,8(9)-dien-3β-ol

209850-55-5

cholesta-4,8-dien-3-one

Conditions
ConditionsYield
With aluminum isopropoxide; acetone; benzene
70741-38-7

cholesta-5,8(9)-dien-3β-ol

17137-76-7

cholesta-5,8-dien-3β-ol acetate

Conditions
ConditionsYield
With pyridine; acetic anhydride
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  • Cholesta-5,8-dien-3-ol,(3b)-

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    70741-38-7

    Cholesta-5,8-dien-3-ol,(3b)-

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    We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production in China for chemicals cus

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  • Cholesta-5,8-dien-3-ol,(3b)-

  • Casno:

    70741-38-7

    Cholesta-5,8-dien-3-ol,(3b)-

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    FOB Price:  USD $ 0.0-0.0

    Our own factory produces direct sales with absolute price advantage Application:Pharmaceutical industry Transportation:By sea Port:Shanghai/tianjin

    Antimex Chemical Limied, was founded in 2001, we are specializing in manufacturing & researching of Active pharmaceutical Ingredients,Veterinary pharm APIs,cosmetic ingredients,and

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    China (Mainland)  |  Contact Details

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