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1196989-23-7

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1196989-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1196989-23-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,6,9,8 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1196989-23:
(9*1)+(8*1)+(7*9)+(6*6)+(5*9)+(4*8)+(3*9)+(2*2)+(1*3)=227
227 % 10 = 7
So 1196989-23-7 is a valid CAS Registry Number.

1196989-23-7Relevant articles and documents

Fluorous mixture synthesis of four stereoisomers of the C21-C40 fragment of tetrafibricin

Zhang, Kai,Curran, Dennis P.

supporting information; experimental part, p. 667 - 671 (2010/12/18)

Four stereoisomers of the C21-C40 fragment are synthesized in a single exercise with the aid of fluorous tagging to encode configurations at C37 and C33. After demixing and detagging, the isomers were found to have substantially identical 1H NM

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