1119391-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1119391-55-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,1,9,3,9 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1119391-55:
(9*1)+(8*1)+(7*1)+(6*9)+(5*3)+(4*9)+(3*1)+(2*5)+(1*5)=147
147 % 10 = 7
So 1119391-55-7 is a valid CAS Registry Number.
1119391-55-7Relevant articles and documents
Synthesis of 1,1,1-trifluorobut-3-yn-2-ones and their reactions with N-nucleophiles
Muzalevskiy, Vasiliy M.,Iskandarov, Anton A.,Nenajdenko, Valentine G.
, p. 342 - 344 (2014)
Bromination of 4-aryl-1,1,1-trifluorobut-3-yn-2-ones gives 4-aryl-3,4-dibromo-1,1,1-trifluorobut-3-en-2-ones whose reactivity towards N-nucleophiles (hydrazine and ethylenediamine) was investigated.