133645-02-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133645-02-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,4 and 5 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 133645-02:
(8*1)+(7*3)+(6*3)+(5*6)+(4*4)+(3*5)+(2*0)+(1*2)=110
110 % 10 = 0
So 133645-02-0 is a valid CAS Registry Number.
InChI:InChI=1/C19H16O3/c1-9-11-5-3-2-4-10(11)8-14-12(9)6-7-13-15(14)18-19(22-18)17(21)16(13)20/h2-8,16-21H,1H3/t16-,17+,18-,19+/m0/s1