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(S)-4-(indol-3-ylmethyl)-1-methylene-2H-pyrazino[2,1-b]quinazoline-3,6(1H,4H)-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

191977-91-0

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191977-91-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191977-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,9,7 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 191977-91:
(8*1)+(7*9)+(6*1)+(5*9)+(4*7)+(3*7)+(2*9)+(1*1)=190
190 % 10 = 0
So 191977-91-0 is a valid CAS Registry Number.

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