71780-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71780-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,8 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71780-68:
(7*7)+(6*1)+(5*7)+(4*8)+(3*0)+(2*6)+(1*8)=142
142 % 10 = 2
So 71780-68-2 is a valid CAS Registry Number.
InChI:InChI=1/C22H25NOS.C4H4O4/c1-15-20-13-17-9-10-18(25-21(24)16-7-5-4-6-8-16)14-19(17)22(15,2)11-12-23(20)3;5-3(6)1-2-4(7)8/h4-10,14-15,20H,11-13H2,1-3H3;1-2H,(H,5,6)(H,7,8)/b;2-1+/t15-,20+,22+;/m0./s1