3,8,12,17-tetraethyl-2,7,13,18-tetramethyl-21,22,23,24-tetrahydro-10H-bilin-1,19-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 37849-67-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,8,4 and 9 respectively; the second part has 2 digits, 6 and 7 respectively. Calculate Digit Verification of CAS Registry Number 37849-67: (7*3)+(6*7)+(5*8)+(4*4)+(3*9)+(2*6)+(1*7)=165 165 % 10 = 5 So 37849-67-5 is a valid CAS Registry Number.