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33570-07-9

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33570-07-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33570-07-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,5,7 and 0 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 33570-07:
(7*3)+(6*3)+(5*5)+(4*7)+(3*0)+(2*0)+(1*7)=99
99 % 10 = 9
So 33570-07-9 is a valid CAS Registry Number.

33570-07-9Downstream Products

33570-07-9Relevant articles and documents

Chemistry of Ginkgolides, I. - 10-Acetyl-1-methoxycarbonyl-2,3,14,15,16-pentanorginkgolide A, an Intermediate for the Synthesis of Bilobalide

Weinges, Klaus,Hepp, Michael,Huber-Patz, Ursula,Rodewald, Hans,Irngartinger, Hermann

, p. 1057 - 1066 (2007/10/02)

The title compound 8b, an intermediate of the intended partial synthesis of bilobalide (10) is obtained by degradation of ginkgolide A (1).The X-ray structural analysis of 14,15,16-trinorginkgolide A (7) confirms the structure of the rings B-E of the ginkgolides

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