1240-04-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1240-04-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,4 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1240-04:
(6*1)+(5*2)+(4*4)+(3*0)+(2*0)+(1*4)=36
36 % 10 = 6
So 1240-04-6 is a valid CAS Registry Number.
InChI:InChI=1/C18H22O5S.K/c1-18-9-8-14-13-5-3-12(23-24(20,21)22)10-11(13)2-4-15(14)16(18)6-7-17(18)19;/h3,5,10,14-16H,2,4,6-9H2,1H3,(H,20,21,22);/t14-,15-,16+,18+;/m1./s1