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5H-Cyclohepta[b]pyridine-3-carboxylic acid, 2-[[(3,4-dimethoxyphenyl)methyl]amino]-8-(2-ethoxy-2-oxoethylidene)-6, 7,8,9-tetrahydro-9-oxo-, ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138722-55-1

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138722-55-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138722-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,2 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138722-55:
(8*1)+(7*3)+(6*8)+(5*7)+(4*2)+(3*2)+(2*5)+(1*5)=141
141 % 10 = 1
So 138722-55-1 is a valid CAS Registry Number.

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