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(2'R)-cis-3-<2',5'-dihydro-4'-<<(1,1-dimethylethyl)diphenylsilyl>oxy>-5'-(hydroxymethyl)-2'-furanyl>-1-(tetrahydropyran-2-yl)-7-<(tetrahydropyran-2-yl)oxy>pyrazolo<4,3-d>pyrimidine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

142189-91-1

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142189-91-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142189-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,1,8 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 142189-91:
(8*1)+(7*4)+(6*2)+(5*1)+(4*8)+(3*9)+(2*9)+(1*1)=131
131 % 10 = 1
So 142189-91-1 is a valid CAS Registry Number.

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