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Propanoic acid, 2-methyl-, (3beta,7beta,19E)-19-[(carboxymethoxy)imino]-3-hydroxy- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

188176-10-5

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188176-10-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188176-10-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,1,7 and 6 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 188176-10:
(8*1)+(7*8)+(6*8)+(5*1)+(4*7)+(3*6)+(2*1)+(1*0)=165
165 % 10 = 5
So 188176-10-5 is a valid CAS Registry Number.

188176-10-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name Isobutyric acid (3S,7R,8R,9S,10S,13S,14S)-10-(carboxymethoxyimino-methyl)-3-hydroxy-13-methyl-17-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-7-yl ester

1.2 Other means of identification

Product number -
Other names -

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:188176-10-5 SDS

188176-10-5Upstream product

188176-10-5Downstream Products

188176-10-5Relevant academic research and scientific papers

Synthesis of (19E)-3β,7β-dihydroxy-17-oxoandrost-5-EN-19-AL 19-(O-carboxymethyl)oxime, new hapten for 7β-hydroxy-dehydroepiandrosterone (3β,7β-dihydroxyandrost-5-EN-17-one)

Pouzar, Vladimir,Slavikova, Tereza,Cerny, Ivan

, p. 109 - 123 (2007/10/03)

(19E)-3β,7β-Dihydroxy-17-oxoandrost-5-en-19-al 19-(O-carboxymethyl)oxime (26) was prepared in 15 steps from 17-oxoandrost-5-en-3β-yl benzoate (2, DHEA benzoate). Protection of position 17 by a borohydride reduction and acetylation, subsequent functionalization of position 19 by hypoiodite reaction, oxidation to 19-aldehyde and oximation gave successively (19E)-19-oxoandrost-5-ene-3β,17β-diyl 17-acetate 3-benzoate 19-(O-carboxymethyl)oxime methyl ester (10). Then 7-keto group was introduced hy allylic oxidation with chromium(VI) oxide-3,5-dimethylpyrazole complex and stereoselectively reduced by borohydride in the presence of cerium(III) ions into 7β-hydroxy group. After protection as 7-isobutyrate the acetate at position 17 was removed and oxidation recovered 17-ketone. Final deprotection revealed both hydroxyl and carhoxyl groups, giving desired 19 CMO 7β-hydroxy DHEA designed as hupten for immunassays.

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