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137555-40-9

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137555-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137555-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,5 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137555-40:
(8*1)+(7*3)+(6*7)+(5*5)+(4*5)+(3*5)+(2*4)+(1*0)=139
139 % 10 = 9
So 137555-40-9 is a valid CAS Registry Number.

137555-40-9Relevant articles and documents

NEW SYNTHESIS OF 3-NITRO-4-QUINOLONES AND -4-CINNOLONES

Maslova, M. M.,Marchenko, N. B.,Glushkov, R. G.

, p. 657 - 660 (2007/10/02)

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