124300-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 124300-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,3,0 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 124300-40:
(8*1)+(7*2)+(6*4)+(5*3)+(4*0)+(3*0)+(2*4)+(1*0)=69
69 % 10 = 9
So 124300-40-9 is a valid CAS Registry Number.
124300-40-9Relevant articles and documents
A Novel Ethynylation of Pyridines by Reissert-Henze Type Reaction
Nishiwaki, Nagatoshi,Minakata, Satoshi,Komatsu, Mitsuo,Ohshiro, Yoshiki
, p. 773 - 776 (2007/10/02)
Reaction of N-benzoyloxypyridinium chloride, Reissert-Henze salt, with silver acetylide gave the pyridine ethynylated selectively at 2-position.The reaction is applicable to various substituted pyridines and pyridine homologs.
