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145497-37-6

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145497-37-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145497-37-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,4,9 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 145497-37:
(8*1)+(7*4)+(6*5)+(5*4)+(4*9)+(3*7)+(2*3)+(1*7)=156
156 % 10 = 6
So 145497-37-6 is a valid CAS Registry Number.

145497-37-6Relevant articles and documents

INTRAMOLECULAR AND INTERMOLECULAR HYDROXYL REACTIVITY DIFFERENCES IN GINKGOLIDES A, B AND C AND THEIR CHEMICAL APPLICATIONS

Corey, E. J.,Rao, K. Srinivas,Ghosh, Arun K.

, p. 6955 - 6958 (2007/10/02)

An investigation of the chemistry of ginkgolides A, B and C (1) has revealed an unusual interaction between the hydroxyl groups at C(1) and C(10) which activates their deprotonation to give 2 and provides a method for the interconversion of 1C and 1B.The ginkgolide 7-enol system 7 is more stable than the corresponding 7-keto form 6, which is easily made by selective Jones oxydation of ginkgolide C.

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