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2,2-Dimethyl-propionic acid 2-{(2R,3S)-3-((S)-4-methyl-2-oxo-[1,3]dioxolan-4-yl)-2-[3-(1-methyl-1H-tetrazol-5-ylsulfanyl)-2-oxo-propyl]-4-oxo-azetidin-1-yl}-2-(triphenyl-λ5-phosphanylidene)-acetoxymethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

102990-90-9

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102990-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 102990-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,9,9 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 102990-90:
(8*1)+(7*0)+(6*2)+(5*9)+(4*9)+(3*0)+(2*9)+(1*0)=119
119 % 10 = 9
So 102990-90-9 is a valid CAS Registry Number.

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