7,13,19,27,33,39-hexa-tert-butyl-41,42,43,44,45,46-hexahydroxy-2,3,22,23-tetrahomo-3,23-dioxacalix[6]arene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 331433-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,4,3 and 3 respectively; the second part has 2 digits, 5 and 1 respectively. Calculate Digit Verification of CAS Registry Number 331433-51: (8*3)+(7*3)+(6*1)+(5*4)+(4*3)+(3*3)+(2*5)+(1*1)=103 103 % 10 = 3 So 331433-51-3 is a valid CAS Registry Number.