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(6R,7R) and (6S,7S)-7-<2R-2(4-ethyl-2,3-dioxo-1-piperidinyl)formamido>-3-trifluoromethyl-3-cephem-4-carboxylic acid (1:1 mixture) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74529-26-3

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74529-26-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74529-26-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,2 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 74529-26:
(7*7)+(6*4)+(5*5)+(4*2)+(3*9)+(2*2)+(1*6)=143
143 % 10 = 3
So 74529-26-3 is a valid CAS Registry Number.

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