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(R)-2-{(2R,3S)-2-(Benzothiazol-2-yldisulfanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-1-yl}-3-methyl-but-3-enoic acid benzhydryl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91618-49-4

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91618-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91618-49-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,1 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91618-49:
(7*9)+(6*1)+(5*6)+(4*1)+(3*8)+(2*4)+(1*9)=144
144 % 10 = 4
So 91618-49-4 is a valid CAS Registry Number.

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