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Check Digit Verification of cas no

The CAS Registry Mumber 2991-85-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,9 and 1 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2991-85:
(6*2)+(5*9)+(4*9)+(3*1)+(2*8)+(1*5)=117
117 % 10 = 7
So 2991-85-7 is a valid CAS Registry Number.

InChI:InChI=1/C4H2F2O5/c5-4(6,3(10)11)1(7)2(8)9/h(H,8,9)(H,10,11)

2991-85-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name	2,2-difluoro-3-oxobutanedioic acid

1.2 Other means of identification

Product number	-
Other names	2-Difluor-3-oxo-bernsteinsaeure

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:2991-85-7 SDS

2991-85-7Upstream product

2991-85-7Downstream Products

2991-85-7Relevant articles and documents

USE OF 19F NMR FOR THE INTERACTION OF FLUORO KETOACIDS AND FLUORO AMINOACIDS. WITH ESCHERICHIA COLI ASPARTATE TRANSAMINASE

Hamman, S.,Salon, M. C.,Beguin, C. C.

, p. 537 (1980)

On influencing of metabolic processes by non-physiological compounds. 3. F containing pyrimidine-and dicarbonic acid-derivatives

Riemschneider,Pehlmann

, p. 540 - 543 (2007/10/05)

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CAS

2991-85-7