2H-10,4a-(Epoxymethano)phenanthrene-7-carboxylic acid,
1,3,4,6,7,8,8a,9,10,10a-decahydro-1,1-dimethyl-6-oxo-, ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 89837-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,3 and 7 respectively; the second part has 2 digits, 4 and 2 respectively. Calculate Digit Verification of CAS Registry Number 89837-42: (7*8)+(6*9)+(5*8)+(4*3)+(3*7)+(2*4)+(1*2)=193 193 % 10 = 3 So 89837-42-3 is a valid CAS Registry Number.