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Aspidospermidine-3-carboxylic acid, 2,3,6,7-tetradehydro-, methyl ester, hydrochloride, (5α,12β,19α)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

28972-21-6

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28972-21-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28972-21-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,9,7 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 28972-21:
(7*2)+(6*8)+(5*9)+(4*7)+(3*2)+(2*2)+(1*1)=146
146 % 10 = 6
So 28972-21-6 is a valid CAS Registry Number.

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