111854-24-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111854-24-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,8,5 and 4 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 111854-24:
(8*1)+(7*1)+(6*1)+(5*8)+(4*5)+(3*4)+(2*2)+(1*4)=101
101 % 10 = 1
So 111854-24-1 is a valid CAS Registry Number.
111854-24-1Relevant articles and documents
Studies on the Chemistry of 1,4-Oxazines, XV: Synthesis of Ethyl 3,4-Dihydro-4-tosyl-2H-1,4-benzoxazine-3-carboxylate
Bartsch, Herbert
, p. 273 - 276 (1987)
A four step synthesis of ethyl 3,4-dihydro-4-tosyl-2H-1,4-benzoxazine-3-carboxylate (4) from the acetal 5 is described. -Keywords: Unambigous synthesis; Ethyl dihydro-1,4-benzoxazine-3-carboxylate