(3aS,4aS,8aR,8bR)-3a-Hydroxy-6,8b-dimethyl-1-oxo-2,3,3a,7,8,8b-hexahydro-1H,4aH-benzo[b]cyclopenta[d]furan-8a-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 87902-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,0 and 2 respectively; the second part has 2 digits, 4 and 2 respectively. Calculate Digit Verification of CAS Registry Number 87902-42: (7*8)+(6*7)+(5*9)+(4*0)+(3*2)+(2*4)+(1*2)=159 159 % 10 = 9 So 87902-42-9 is a valid CAS Registry Number.
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