171667-99-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171667-99-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,6,6 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 171667-99:
(8*1)+(7*7)+(6*1)+(5*6)+(4*6)+(3*7)+(2*9)+(1*9)=165
165 % 10 = 5
So 171667-99-5 is a valid CAS Registry Number.
InChI:InChI=1/C16H17N5O3/c1-10-9-12(11-5-3-2-4-6-11)21-16(17-10)19-15(20-21)18-13(22)7-8-14(23)24/h2-6,9,12H,7-8H2,1H3,(H,23,24)(H2,17,18,19,20,22)