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21016-30-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21016-30-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,1 and 6 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21016-30:
(7*2)+(6*1)+(5*0)+(4*1)+(3*6)+(2*3)+(1*0)=48
48 % 10 = 8
So 21016-30-8 is a valid CAS Registry Number.

21016-30-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name	2,4-Diphenyl-5,6-dihydrocyclopenta(b) pyrylium perchlorate

1.2 Other means of identification

Product number	-
Other names	2,4-Diphenylcyclopenteno(1,2-b)pyrylium Perchlorate

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:21016-30-8 SDS

21016-30-8Upstream product

21016-30-8Downstream Products

78018-73-2 2,4-diphenyl-6,7-dihidro-5H-cyclopentapyridine

132703-98-1 (E)-3-(2,4-Diphenyl-5,6-dihydro-cyclopenta[b]pyran-7-yl)-2-(4-nitro-phenyl)-propenal

21016-30-8Relevant articles and documents

Kinetics and Mechanisms of Nucleophilic Displacements with Heterocycles as Leaving Groups. 2. N-Benzylpyridinium Cations: Rate Variation with Steric Effects in the Leaving Group

Katritzky, Alan R.,El-Mowafy, Azzahra M.,Musumarra, Giuseppe,Sakizadeh, Kumars,Sana-Ullah, Choudhry,et al.

, p. 3823 - 3830 (1981)

N-Benzyl groups are transferred to piperidine from pyridinium ions by unimolecular SN1 and/or bimolecular SN2 mechanisms.Steric acceleration by α-phenyl groups is reduced by an adjacent β-methyl group but increased by constraining th

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