55740-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55740-87-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,4 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 55740-87:
(7*5)+(6*5)+(5*7)+(4*4)+(3*0)+(2*8)+(1*7)=139
139 % 10 = 9
So 55740-87-9 is a valid CAS Registry Number.
55740-87-9Relevant academic research and scientific papers
A new synthesis of phthalimidines
Ukhin,Suponitsky,Belousova,Orlova
, p. 2478 - 2487 (2014/05/06)
A new synthesis of phthalimidines is described. 3-Acyloxy-2-aryl- and 2-acylamino-3-acyloxyphthalimidines were prepared by the reaction of 3-arylaminophthalides or o-formylbenzoic acid acylhydrazones with acetic or propionic anhydrides. Their reactions wi
