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97204-51-8

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97204-51-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97204-51-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,2,0 and 4 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 97204-51:
(7*9)+(6*7)+(5*2)+(4*0)+(3*4)+(2*5)+(1*1)=138
138 % 10 = 8
So 97204-51-8 is a valid CAS Registry Number.

97204-51-8Relevant articles and documents

SYNTHESIS AND REVISED STRUCTURE OF THE O-SUCCINYLBENZOIC ACID COENZYME A ESTER, AN INTERMEDIATE IN MENAQUINONE BIOSYNTHESIS

Kolkmann, R.,Leistner, E.

, p. 1703 - 1704 (1985)

Synthesis of the two isomers 2, 3 of the mono coenzyme A ester of o-succinylbenzoic acid (1, OSB, i.e. 4-(2-carboxyphenyl)-4-oxobutanoic acid) and enzymic conversion of 3 to 1,4-dihydroxy-2-naphtoic acid 7 shows that as opposed to previous assumptions the "aliphatic" rather than the"aromatic" carboxyl group in o-succinylbenzoic acid 1 is activated during vitamin K2 biosynthesis in Escherichia coli and Myobacterium phlei.

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