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1490-05-7

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1490-05-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1490-05-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,9 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1490-05:
(6*1)+(5*4)+(4*9)+(3*0)+(2*0)+(1*5)=67
67 % 10 = 7
So 1490-05-7 is a valid CAS Registry Number.

1490-05-7Relevant articles and documents

IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS

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Page/Page column 9, (2020/01/08)

Disclosed is a compound represented by formula (I). The half-doted double lines each represent a carbon-carbon single bond or a carbon-carbon double bond. The six-membered ring comprises exactly one endocyclic carbon-carbon double bond or exactly two endocyclic carbon-carbon double bonds. When the six-membered ring comprises exactly two endocyclic carbon-carbon double bonds, the endocyclic carbon-carbon double bonds are either in 1,3-relationship or in 1,4-relationship. R is selected from the group consisting of iso-propyl, iso-butyl, sec-butyl and tert-butyl.

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