Threonine, N-(aminocarbonyl)- (9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 104928-21-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,2 and 8 respectively; the second part has 2 digits, 2 and 1 respectively. Calculate Digit Verification of CAS Registry Number 104928-21: (8*1)+(7*0)+(6*4)+(5*9)+(4*2)+(3*8)+(2*2)+(1*1)=114 114 % 10 = 4 So 104928-21-4 is a valid CAS Registry Number.