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(3alpha,5beta)-17-ethyl-10,17-dimethylgon-13-en-3-ol is a complex organic compound with the molecular formula C21H34O. It is a steroidal alcohol, specifically a gonane derivative, which is a type of steroid with a unique carbon skeleton. (3alpha,5beta)-17-ethyl-10,17-dimethylgon-13-en-3-ol is characterized by its 3alpha,5beta configuration, indicating the orientation of its hydroxyl group and other functional groups. It features a 13-en double bond, which is a key structural element, and a 3-ol hydroxyl group, which is a common functional group in many biologically active molecules. The presence of an ethyl group at the 17-position and methyl groups at both the 10 and 17 positions further define its structure. (3alpha,5beta)-17-ethyl-10,17-dimethylgon-13-en-3-ol is of interest in the field of organic chemistry and may have potential applications in pharmaceuticals or as a precursor in the synthesis of other complex molecules.

49756-87-8

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49756-87-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49756-87-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,7,5 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 49756-87:
(7*4)+(6*9)+(5*7)+(4*5)+(3*6)+(2*8)+(1*7)=178
178 % 10 = 8
So 49756-87-8 is a valid CAS Registry Number.

49756-87-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 17α-ethyl-17β-methyl-18-nor-5β-androst-13-en-3α-ol

1.2 Other means of identification

Product number -
Other names (3R,5R,8R,9S,10S,17R)-17-Ethyl-10,17-dimethyl-2,3,4,5,6,7,8,9,10,11,12,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:49756-87-8 SDS

49756-87-8Downstream Products

49756-87-8Relevant academic research and scientific papers

Clinical Analysis on Steroids. XII. Occurrence of D-Homoannulation during the Hot Acid Hydrolysis of 5β-Pregnane-3α,20α-diol Disulfate

Yoshizawa, Itsuo,Nagata, Kyoko,Oh'uchi, Ryoko,Itoh, Shinji,Kanaiwa, Yoshio,Amiya, Takashi

, p. 87 - 96 (1980)

Two D-homosteroids were isolated from the hydrolyzate of 5β-pregnane-3α,20α-diol disulfate (II) when it was refluxed in 3N hydrochloric acid.The structures of these steroids have been elucidated as 17α-methyl-D-homo-5β-androstane-3α,17aβ-diol (VI) and 17α-methyl-17aβ-chloro-D-homo-5β-androstan-3α-ol (VIII) by instrumental analyses.The former was identical with a synthetic specimen derived from 5β-pregnane-3α,20β-diol disulfate (IV) by uranediol rearrangement.The main hydrolyzates obtained were 17α-ethyl-17β-methyl-18-nor-5β-androst-13-en-3α-ol (V) and 5β-pregnane-3α-20α-diol (III).

Mechanism of the D-Homoannulation of Pregnanediol Disulfate in Refluxing 3 N Hydrochloric acid

Yoshizawa, Itsuo,Itoh, Shinji,Nagata, Kyoko,Kawahara, Norio

, p. 3819 - 3828 (2007/10/02)

In order to elucidate the mechanism of D-homoannulation of pregnanediol 20-sulfate, solvolysis of -5β-pregnane-3α,20α-diol disulfate (3) in refluxing 3 N hydrochloric acid was investigated.The resulting D-homosteroids, 17percenta-methyl-D-homo-5β-androstane-3α,17aβ-diol (8) and 17α-methyl-17aβ-chloro-D-homo-5β-androstan-3α-ol (10), contained a quantitative amount of (13)C only at C-17, indicating that the ring-enlargement reaction of the 20α-ol sulfate proceeded with stereospecific migration of the C16-C17 bond.The same result was obtained from isomeric -5β-pregnane-3α,20β-diol disulfate (6).Based on these results,the D-homoannulation of pregnanediol 20-sulfate was concluded to proceed by a stepwise mechanism through the C-20 carbocation.The stereochemistry of this Wagner-Meerwein type rearrangement reaction is also discussed. Keywords --- 5β-pregnane-3α,20α-diol (pregnanediol); pregnanediol disulfate; 5β-pregnane-3α,20β-diol; D-homoannulation; stereochemistry; steroidal sulfate; acid hydrolysis; (13)C-NMR

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