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87308-15-4

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87308-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87308-15-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,3,0 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 87308-15:
(7*8)+(6*7)+(5*3)+(4*0)+(3*8)+(2*1)+(1*5)=144
144 % 10 = 4
So 87308-15-4 is a valid CAS Registry Number.

87308-15-4Relevant articles and documents

Methyl Deuteration Reactions in Vinylporphyrins: Protoporphyrins IX, III, and XIII

Smith, Kevin M.,Parish, Daniel W.,Inouye, Warren S.

, p. 666 - 671 (2007/10/02)

Base-catalyzed deuteration of the methyl groups in protoporphyrin IX dimethyl ester (1) proceeds with differential deuteration; rate of deuteration, as measured by NMR spectroscopy of reaction products, follows the order 3-Me > 1-Me >5-Me >8-Me.A simple q

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