2,3,4,2',3',4'-hexa-O-benzyl-6,6'-di-(corynomycoloylamino)-6,6'-dideoxy-α,α-trehalose is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 78857-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,5 and 7 respectively; the second part has 2 digits, 9 and 8 respectively. Calculate Digit Verification of CAS Registry Number 78857-98: (7*7)+(6*8)+(5*8)+(4*5)+(3*7)+(2*9)+(1*8)=204 204 % 10 = 4 So 78857-98-4 is a valid CAS Registry Number.