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521944-77-4

521944-77-4

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521944-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 521944-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,1,9,4 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 521944-77:
(8*5)+(7*2)+(6*1)+(5*9)+(4*4)+(3*4)+(2*7)+(1*7)=154
154 % 10 = 4
So 521944-77-4 is a valid CAS Registry Number.

521944-77-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-Methyl-4-(3-phenoxy-prop-1-ynyl)-1H-pyrazole-3-carboxylic acid methyl 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:521944-77-4 SDS

521944-77-4Relevant articles and documents

Study of the heterocyclization of vic-substituted hydrazides of acetylenylpyrazolecarboxylic acids into N-amino pyrazolopyridinones

Vasilevsky, Sergei F.,Mshvidobadze, Elena V.,Elguero, Jose

, p. 1229 - 1233 (2007/10/03)

We report a new and efficient methodology to prepare N-amino pyrazolo[4,3-c]pyridin-4-ones 4 and N-amino pyrazolo[3,4-c]pyridin-4-ones 8 from vic-acetylenyl/hydrazido pyrazoles. The procedure involves the intermediate synthesis of methyl esters of acetylenyl-pyrazole carboxylic acids and the subsequent cyclization under a variety of conditions.

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