844891-16-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 844891-16-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,4,8,9 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 844891-16:
(8*8)+(7*4)+(6*4)+(5*8)+(4*9)+(3*1)+(2*1)+(1*6)=203
203 % 10 = 3
So 844891-16-3 is a valid CAS Registry Number.
InChI:InChI=1/C13H8F2O3/c14-8-1-4-10(11(15)7-8)12-5-2-9(18-12)3-6-13(16)17/h1-7H,(H,16,17)/b6-3+