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70988-57-7

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70988-57-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70988-57-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,9,8 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 70988-57:
(7*7)+(6*0)+(5*9)+(4*8)+(3*8)+(2*5)+(1*7)=167
167 % 10 = 7
So 70988-57-7 is a valid CAS Registry Number.

70988-57-7Relevant articles and documents

Biosynthesis of Porphyrins and Related Macrocycles. Part 17. Chemical and Enzymic Transformation of Isomeric Aminomethylbilanes into Uroporphyrinogens: Proof that Unrearranged Bilane is the Preferred Enzymic Substrate and Detection of a Transient Intermed

Battersby, Alan R.,Fookes, Christopher J. R.,Gustafson-Potter, Kerstin E.,McDonald, Edward,Matcham, George W. J.

, p. 2413 - 2426 (2007/10/02)

Six isomeric aminomethylbilanes have been built by unambiguous synthesis.One bilane has the unrearranged structure corresponding to straightforward head-to-tail assembly of four units of porphobilinogen; the other five bilanes have one or more of the pyrr

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