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tert-butyldimethylphosphine sulfide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21187-19-9

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21187-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21187-19-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,8 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21187-19:
(7*2)+(6*1)+(5*1)+(4*8)+(3*7)+(2*1)+(1*9)=89
89 % 10 = 9
So 21187-19-9 is a valid CAS Registry Number.

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