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62562-74-7

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62562-74-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 62562-74-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,5,6 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 62562-74:
(7*6)+(6*2)+(5*5)+(4*6)+(3*2)+(2*7)+(1*4)=127
127 % 10 = 7
So 62562-74-7 is a valid CAS Registry Number.

62562-74-7Relevant 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 (1986)

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

Transformation of a monovinylporphyrin to benzoporphyrins via Diels-Alder adducts

Yon-Hin,Wijesekera,Dolphin

, p. 6135 - 6138 (2007/10/02)

A β-unsubstituted-β'-vinylporphyrin has been synthesized which reacted with an excess of acetylenedicarboxylate ester to give monobenzoporphyrins in high yield. Evidence that suggests an isomerization of the initial adduct to a new porphyrin enroute to the benzoporphyrin is presented.

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