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(2S,3S,6R)-3-(tert-Butyl-dimethyl-silanyloxy)-6-[(2S,3S,6R,8S,9R)-8-((S)-4-hydroxy-3-methyl-pentyl)-3,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-2-methyl-heptanal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

642442-75-9

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642442-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 642442-75-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,2,4,4 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 642442-75:
(8*6)+(7*4)+(6*2)+(5*4)+(4*4)+(3*2)+(2*7)+(1*5)=149
149 % 10 = 9
So 642442-75-9 is a valid CAS Registry Number.

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