16893-49-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16893-49-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,8,9 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16893-49:
(7*1)+(6*6)+(5*8)+(4*9)+(3*3)+(2*4)+(1*9)=145
145 % 10 = 5
So 16893-49-5 is a valid CAS Registry Number.
InChI:InChI=1/C19H14ClN7O10S3/c20-17-23-18(21)25-19(24-17)22-11-7-9(38(29,30)31)5-8-6-13(40(35,36)37)15(16(28)14(8)11)27-26-10-3-1-2-4-12(10)39(32,33)34/h1-7,28H,(H,29,30,31)(H,32,33,34)(H,35,36,37)(H3,21,22,23,24,25)