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4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-2-diazo-3-oxo-butyric acid benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

79975-87-4

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79975-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79975-87-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,9,7 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 79975-87:
(7*7)+(6*9)+(5*9)+(4*7)+(3*5)+(2*8)+(1*7)=214
214 % 10 = 4
So 79975-87-4 is a valid CAS Registry Number.

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