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Check Digit Verification of cas no

The CAS Registry Mumber 27798-62-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,7,9 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 27798-62:
(7*2)+(6*7)+(5*7)+(4*9)+(3*8)+(2*6)+(1*2)=165
165 % 10 = 5
So 27798-62-5 is a valid CAS Registry Number.

27798-62-5SDS

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	methyl 2-(4-trimethylsilyloxyphenyl)acetate

1.2 Other means of identification

Product number	-
Other names	methyl 4-(trimethylsilyloxy)phenylacetate

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:27798-62-5 SDS

27798-62-5Upstream product

27798-62-5Downstream Products

27798-62-5Relevant articles and documents

Uncatalyzed reaction of silyl ketene acetals with oxalyl chloride: A straightforward preparation of symmetrical pulvinic acids

Heurtaux, Benoit,Lion, Claude,Le Gall, Thierry,Mioskowski, Charles

, p. 1474 - 1477 (2007/10/03)

(Chemical Equation Presented) Several natural pulvinic acids were synthesized. Silyl ketene acetals derived from methyl arylacetates (4 equiv) reacted with oxalyl chloride at -78°C, without the need of adding a catalyst. After treatment of the crude diketones with DBU and acidification with hydrochloric acid, symmetrical pulvinic acids methyl esters were obtained. Saponification of the methyl esters afforded the corresponding pulvinic acids in 60-70% overall yields from oxalyl chloride.

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CAS

27798-62-5