57641-19-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57641-19-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,4 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57641-19:
(7*5)+(6*7)+(5*6)+(4*4)+(3*1)+(2*1)+(1*9)=137
137 % 10 = 7
So 57641-19-7 is a valid CAS Registry Number.
InChI:InChI=1/C18H26O5/c1-4-23-18(20)10-8-6-5-7-9-15(19)14-11-12-16(21-2)17(13-14)22-3/h11-13H,4-10H2,1-3H3