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3-Acetyloxy-17-hydroxy-16-methylpregn-5-en-20-one is a complex steroidal compound characterized by its unique molecular structure. It features a pregnane core, which is a type of steroid nucleus, with a 16-methyl group attached, indicating the presence of an additional carbon atom at the 16th position. The molecule also includes a 3-acetyloxy group, suggesting the presence of an acetyl functional group attached to the third carbon, and a 17-hydroxy group, indicating a hydroxyl group at the 17th carbon. The 5-en part of the name indicates a double bond between the 5th and 6th carbons. 3-Acetyloxy-17-hydroxy-16-methylpregn-5-en-20-one is a derivative of pregnenolone, a hormone produced in the body, and is often found in the context of pharmaceuticals and biochemistry due to its potential biological activities.

1249-66-7

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1249-66-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1249-66-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,4 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1249-66:
(6*1)+(5*2)+(4*4)+(3*9)+(2*6)+(1*6)=77
77 % 10 = 7
So 1249-66-7 is a valid CAS Registry Number.

1249-66-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name [(8R,9S,10R,13S,14S,17R)-17-acetyl-17-hydroxy-10,13,16-trimethyl-1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-yl] acetate

1.2 Other means of identification

Product number -
Other names Pregn-5-en-20-one,3-(acetyloxy)-17-hydroxy-16-methyl-,(3b,16a)-(9CI)

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:1249-66-7 SDS

1249-66-7Relevant academic research and scientific papers

Autooxidation of Δ17(20)-20-hydroxy derivatives of steroids. Synthesis of 3β-acetoxy-17α-hydroperoxy-16α- methylpregn-5-en-20-one and its reduction to 17α-hydroxy derivative

Savinova,Lukashev,Huy,Beletskaya

, p. 54 - 61 (2011)

An efficient procedure was proposed for the synthesis of 3β-acetoxy-17α-hydroperoxy-16α-methylpregn-5-en-20-one. Optimal conditions were found for the combined process including 1,4-addition of methylmagnesium bromide at the Δ16-20-oxo fragment of dehydropregnenolone acetate and autooxidation of resulting bromomagnesium 3β-acetoxy-16α-methylpregna-5,17(20)-dien-20-olate. The subsequent reduction of the 17α-hydroperoxy group and hydrolysis of the 3β-acetoxy group afforded 17α-hydroxy-16α-methyl-substituted dehydropregnenolone acetate and its 3-hydroxy analog in high yield.

Efficient synthesis of 16α-methyl cyproterone acetate

Sakee, Uthai,Kongkathip, Boonsong,Kongkathip, Ngampong

, p. 12 - 13 (2007/10/03)

An effective method for synthesis of 16α-methyl cyproterone acetate was accomplished starting from commercially available 16-dehydropregnenolone acetate in eight steps, 11.5% overall yield.

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