(8-TB-5-13)-2,5,5,8,8-pentaphenyl-5,8-dihydro-8λ5-[1,2]azaphospholo[2,1-b][1,3,2]oxazaphosphole-6,7-dicarboxylic acid dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 71236-77-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,3 and 6 respectively; the second part has 2 digits, 7 and 7 respectively. Calculate Digit Verification of CAS Registry Number 71236-77: (7*7)+(6*1)+(5*2)+(4*3)+(3*6)+(2*7)+(1*7)=116 116 % 10 = 6 So 71236-77-6 is a valid CAS Registry Number.
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