(2Z,6E,10E,14E)-6,11,15,19-Tetramethyl-2-(4-methyl-pent-3-enyl)-icosa-2,6,10,14,18-pentaen-1-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 137372-78-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,3,7 and 2 respectively; the second part has 2 digits, 7 and 8 respectively. Calculate Digit Verification of CAS Registry Number 137372-78: (8*1)+(7*3)+(6*7)+(5*3)+(4*7)+(3*2)+(2*7)+(1*8)=142 142 % 10 = 2 So 137372-78-2 is a valid CAS Registry Number.