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(1S,2S,4R,6S,7R)-7-(tert-Butyl-dimethyl-silanyloxymethyl)-3,8,9-trioxa-tricyclo[4.2.1.02,4]nonan-5-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

221015-90-3

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221015-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221015-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,0,1 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 221015-90:
(8*2)+(7*2)+(6*1)+(5*0)+(4*1)+(3*5)+(2*9)+(1*0)=73
73 % 10 = 3
So 221015-90-3 is a valid CAS Registry Number.

221015-90-3Upstream product

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