2,20-Cycloaspidospermidine-3-carboxylic acid,methyl ester,(2R,3â,5R,12â,19R,20S)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 55954-33-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,9,5 and 4 respectively; the second part has 2 digits, 3 and 3 respectively. Calculate Digit Verification of CAS Registry Number 55954-33: (7*5)+(6*5)+(5*9)+(4*5)+(3*4)+(2*3)+(1*3)=151 151 % 10 = 1 So 55954-33-1 is a valid CAS Registry Number.