16133-13-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16133-13-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,3 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 16133-13:
(7*1)+(6*6)+(5*1)+(4*3)+(3*3)+(2*1)+(1*3)=74
74 % 10 = 4
So 16133-13-4 is a valid CAS Registry Number.
16133-13-4Relevant articles and documents
Reaction of N-alkylpyridinium salts with hydroxylamine
M?hrle, Hans,Nie?en, Robert
, p. 434 - 442 (2000)
1-Methylpyridinium salts showed no reaction with excessive hydroxylamine, but nicotinic acid derivatives in HMPT gave the corresponding N-oxides. 3-Acetyl-1-methylpyridinium iodide generated the hydroximino-pyridine 1-oxide 13 and the isoxazoles 14, 15E,