(9S,12S,15S)-9-tert-Butoxycarbonylamino-4-hydroxy-12-(4-hydroxy-benzyl)-10,13-dioxo-2-oxa-11,14-diaza-tricyclo[15.2.2.13,7]docosa-1(20),3,5,7(22),17(21),18-hexaene-15-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 123418-34-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,4,1 and 8 respectively; the second part has 2 digits, 3 and 4 respectively. Calculate Digit Verification of CAS Registry Number 123418-34: (8*1)+(7*2)+(6*3)+(5*4)+(4*1)+(3*8)+(2*3)+(1*4)=98 98 % 10 = 8 So 123418-34-8 is a valid CAS Registry Number.
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