125443-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 125443-18-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,4,4 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 125443-18:
(8*1)+(7*2)+(6*5)+(5*4)+(4*4)+(3*3)+(2*1)+(1*8)=107
107 % 10 = 7
So 125443-18-7 is a valid CAS Registry Number.
125443-18-7Relevant articles and documents
A NOVEL SYNTHESIS OF KETOPROFEN, IMPORTANT NON-STEROIDAL ANTIINFLAMMATORY AGENT
Mitra, R. B.,Joshi, Vijaya S.
, p. 2259 - 2266 (2007/10/02)
The α-propionic acid moiety in ketoprofen is attached through Wittig Horner reaction of ethylphosphono propionate on 3-benzyl cyclohexanone, prepared by G. reaction of benzylmagnesium chloride with 2-cyclohexenone (in presence of cuprous chloride).