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29980-76-5

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29980-76-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 29980-76-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,9,8 and 0 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 29980-76:
(7*2)+(6*9)+(5*9)+(4*8)+(3*0)+(2*7)+(1*6)=165
165 % 10 = 5
So 29980-76-5 is a valid CAS Registry Number.

29980-76-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-(4-nitrophenyl)-1,2,3-benzotriazin-4-one

1.2 Other means of identification

Product number -
Other names 3-(4-nitrophenyl)-1,2,3-benzotriazin-4(3h)-one

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:29980-76-5 SDS

29980-76-5Downstream Products

29980-76-5Relevant articles and documents

SYNTHESIS AND CYCLIZATION KINETICS AND MECHANISM OF 1-(2-ETHOXYCARBONYLPHENYL)-3-ARYLTRIAZENES. KINETIC ACIDITY FUNCTION OF SODIUM METHOXIDE IN METHANOL

Pytela, Oldrich,Dlouhy, Vladimir

, p. 2468 - 2474 (2007/10/02)

Eight 1-(2-ethoxycarbonylphenyl)-3-aryltriazenes have been synthetized and the rate constants of their sodium-metoxide-catalyzed cyclization have been measured in methanol at 25.0 deg C.The experimental rate constants kobs have been adopted to construct the kinetic acidity function HKM which has been shown to be identical with the -log -> values.Two mathematical procedures have been used to determine the catalytic rate constants and their dependence on the Hammett substituent constants.A closer dependence is obtained with the ? values than with the?p- values.The Q value found (0.3) indicates a compensation of the substituent effects upon the dissociation of the starting triazene and upon the subsequent reaction of the conjugated base.Out of the two mechanistic alternatives - E1cB and BAc2 - the latter appears to be more probable, the splitting of tetrahedral intermediate being its limiting step.

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