(S)-2-Methyl-butyric acid (1S,4aR,7S,8S,8aS)-8-hydroxymethyl-7-methyl-1,2,3,4,4a,7,8,8a-octahydro-naphthalen-1-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 137445-69-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,4 and 5 respectively; the second part has 2 digits, 6 and 9 respectively. Calculate Digit Verification of CAS Registry Number 137445-69: (8*1)+(7*3)+(6*7)+(5*4)+(4*4)+(3*5)+(2*6)+(1*9)=143 143 % 10 = 3 So 137445-69-3 is a valid CAS Registry Number.