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(4R,5S,6S)-6-((R)-1-Hydroxy-ethyl)-3-[(3S,5S)-5-[4-(2-methoxy-ethyl)-piperazine-1-carbonyl]-1-(4-nitro-benzyloxycarbonyl)-pyrrolidin-3-ylsulfanyl]-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138401-04-4

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138401-04-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138401-04-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,0 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138401-04:
(8*1)+(7*3)+(6*8)+(5*4)+(4*0)+(3*1)+(2*0)+(1*4)=104
104 % 10 = 4
So 138401-04-4 is a valid CAS Registry Number.

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