[(8S,11S,14S)-14-[(tert-butoxycarbonyl)amino]-11-{3-[(tert-butoxycarbonyl)amino]propyl}-17-hydroxy-10,13-dioxo-9,12-diazotricyclo[14.3.1.12,6]henicosa-1(20),2(21),3,5,16,18-hexaen-8-yl]acetic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 919988-55-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,9,9,8 and 8 respectively; the second part has 2 digits, 5 and 5 respectively. Calculate Digit Verification of CAS Registry Number 919988-55: (8*9)+(7*1)+(6*9)+(5*9)+(4*8)+(3*8)+(2*5)+(1*5)=249 249 % 10 = 9 So 919988-55-9 is a valid CAS Registry Number.
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