57-29-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57-29-4 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 7 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57-29:
(4*5)+(3*7)+(2*2)+(1*9)=54
54 % 10 = 4
So 57-29-4 is a valid CAS Registry Number.
InChI:InChI=1/C19H21NO3.ClH/c1-2-8-20-9-7-19-12-4-6-15(22)18(19)23-17-14(21)5-3-11(16(17)19)10-13(12)20;/h2-6,12-13,15,18,21-22H,1,7-10H2;1H/t12-,13+,15-,18-,19-;/m0./s1