2681-57-4

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Basic information

Product Name: 4-pregnene-3,20-dione-21-oic acid
Synonyms: 4-pregnene-3,20-dione-21-oic acid;3,20-Dioxopregn-4-en-21-oic acid;Pregnenoic acid
CAS NO:2681-57-4
Molecular Formula: C21H28 O4
Molecular Weight: 344.44
EINECS: N/A
Product Categories: N/A
Mol File: 2681-57-4.mol
Article Data: 4

Chemical Properties

Melting Point: N/A
Boiling Point: 494°Cat760mmHg
Flash Point: 266.7°C
Appearance: /
Density: 1.21g/cm³
Vapor Pressure: 4.15E-11mmHg at 25°C
Refractive Index: 1.567
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 4-pregnene-3,20-dione-21-oic acid(CAS DataBase Reference)
NIST Chemistry Reference: 4-pregnene-3,20-dione-21-oic acid(2681-57-4)
EPA Substance Registry System: 4-pregnene-3,20-dione-21-oic acid(2681-57-4)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 2681-57-4(Hazardous Substances Data)

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2681-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2681-57-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,8 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 2681-57:
(6*2)+(5*6)+(4*8)+(3*1)+(2*5)+(1*7)=94
94 % 10 = 4
So 2681-57-4 is a valid CAS Registry Number.

InChI:InChI=1/C21H28O4/c1-20-9-7-13(22)11-12(20)3-4-14-15-5-6-17(18(23)19(24)25)21(15,2)10-8-16(14)20/h11,14-17H,3-10H2,1-2H3,(H,24,25)/t14-,15-,16-,17+,20-,21-/m0/s1

2681-57-4SDS

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	3,20-Diketo-4-pregnene-21-oic acid

1.2 Other means of identification

Product number	-
Other names	((14S,17S)-10,13-Dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-oxo-acetic acid

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:2681-57-4 SDS

2681-57-4Upstream product

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2681-57-4Relevant articles and documents

OXIDATION OF CORTICOSTEROIDS BY FLAVINS

Jasiczak, J.,Smoczkiewicz, M. A.

, p. 5221 - 5224 (1985)

The new reaction is reported between corticosteroids and flavins leading to the steroid-21-oic acids.

Organic compounds with reversible red-ox potential as oxidizing agents in steroid chemistry; II. Indophenol salts (Tillmans reagent)

Jasiczak,Smoczkiewicz

, p. 804 - 805 (2007/10/02)

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