24143-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 24143-91-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,1,4 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 24143-91:
(7*2)+(6*4)+(5*1)+(4*4)+(3*3)+(2*9)+(1*1)=87
87 % 10 = 7
So 24143-91-7 is a valid CAS Registry Number.
24143-91-7Relevant articles and documents
Synthesis and Study of Triphenylarsenobetaines and Related Halides
Gamayurova,Shulaeva,Sysoeva,Khalitov
, p. 1218 - 1220 (2007/10/03)
Reactions of triphenylarsine with chloroacetic, bromoacetic, and bromopropionic acids yielded carboxyalkyltriphenylarsonium salts. Reaction of triphenylarsine with ethyl bromoacetate yielded ethoxycarbonylmethyltriphenylarsonium bromide. Alkali treatment