4-((3aR,3bS,8S,8aR,9aR)-2,2,5,5-Tetramethyl-hexahydro-1,3,4,6,9-pentaoxa-cyclopenta[a]azulen-8-yl)-butan-2-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 440351-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,0,3,5 and 1 respectively; the second part has 2 digits, 1 and 7 respectively. Calculate Digit Verification of CAS Registry Number 440351-17: (8*4)+(7*4)+(6*0)+(5*3)+(4*5)+(3*1)+(2*1)+(1*7)=107 107 % 10 = 7 So 440351-17-7 is a valid CAS Registry Number.