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(E)-(4R,6S)-6-(tert-Butyl-dimethyl-silanyloxy)-2,4-dimethyl-hept-2-enoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

156659-90-4

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156659-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156659-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,6,5 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 156659-90:
(8*1)+(7*5)+(6*6)+(5*6)+(4*5)+(3*9)+(2*9)+(1*0)=174
174 % 10 = 4
So 156659-90-4 is a valid CAS Registry Number.

156659-90-4Upstream product

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