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Check Digit Verification of cas no

The CAS Registry Mumber 90543-03-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,5,4 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90543-03:
(7*9)+(6*0)+(5*5)+(4*4)+(3*3)+(2*0)+(1*3)=116
116 % 10 = 6
So 90543-03-6 is a valid CAS Registry Number.

90543-03-6SDS

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	Benzo[b]thiophene-3-carboxylic acid, 4,5,6,7-tetrahydro-2-[(triphenylphosphoranylidene)amino]-, ethyl 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:90543-03-6 SDS

90543-03-6Upstream product

90543-03-6Downstream Products

90543-03-6Relevant articles and documents

Chemistry of iminofurans: X. Synthesis and hydrolysis of 5-aryl(hetaryl)-2-[(4,5,6,7-tetrahydro-1-benzothiophen-2-yl)imino]furan-3(2H)-ones

Panchenko,Shipilovskikh,Rubtsov

, p. 343 - 348 (2016/06/06)

5-Aryl(hetaryl)furan-2,3-diones reacted with N-(triphenyl-λ5-phosphanylidene)-4,5,6,7-tetrahydro-1-benzothiophen-2-amines to give 5-aryl(hetaryl)-2-[(4,5,6,7-tetrahydro-1-benzothiophen-2-yl)imino]furan-3(2H)-ones whose acid hydrolysis afforded 4-aryl(hetaryl)-2-hydroxy-4-oxo-N-(4,5,6,7-tetrahydro-1-benzothiophen- 2-yl)but-2-enamides.

Heterocyclic β-Enamino Esters, 31 Novel 6:7-, 6:8-, and 5:6:7-Combinations of Heterocondensed Pyrimidines from Iminophosphoranes of Heterocyclic β-Enamino Esters. - Stable Heterocyclic Ylides

Wamhoff, Heinrich,Haffmanns, Guenter

, p. 585 - 621 (2007/10/02)

With acetylenic esters the (5-azolylimino)triphenylphosphoranes 10a-d do not show any cycloaddition tendency, while the (2-thienylimino)triphenylphosphoranes 8a,b yield the stable ylids 13a,b.By treatment with phenyl isocyanate the iminophosphoranes 16a-m

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CAS

90543-03-6