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(R)-2-[(2R,3R)-2-(Benzothiazol-2-yldisulfanyl)-3-((S)-2-hydroxy-2-phenyl-acetylamino)-4-oxo-azetidin-1-yl]-3-(1-methyl-1H-tetrazol-5-ylsulfanylmethyl)-but-3-enoic acid benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91603-77-9

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91603-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91603-77-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,0 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91603-77:
(7*9)+(6*1)+(5*6)+(4*0)+(3*3)+(2*7)+(1*7)=129
129 % 10 = 9
So 91603-77-9 is a valid CAS Registry Number.

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