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4-chloro-2,3,3,7-tetramethyl-3H-indole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1639789-02-8

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1639789-02-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1639789-02-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,9,7,8 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1639789-02:
(9*1)+(8*6)+(7*3)+(6*9)+(5*7)+(4*8)+(3*9)+(2*0)+(1*2)=228
228 % 10 = 8
So 1639789-02-8 is a valid CAS Registry Number.

1639789-02-8Upstream product

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