(7R,8S,10bS)-7,8-Dihydroxy-1,5,6,7,8,9,10,10b-octahydro-oxazolo[4,3-a]isoquinolin-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 200638-10-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,6,3 and 8 respectively; the second part has 2 digits, 1 and 0 respectively. Calculate Digit Verification of CAS Registry Number 200638-10: (8*2)+(7*0)+(6*0)+(5*6)+(4*3)+(3*8)+(2*1)+(1*0)=84 84 % 10 = 4 So 200638-10-4 is a valid CAS Registry Number.