156699-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156699-49-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,6,9 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 156699-49:
(8*1)+(7*5)+(6*6)+(5*6)+(4*9)+(3*9)+(2*4)+(1*9)=189
189 % 10 = 9
So 156699-49-9 is a valid CAS Registry Number.
156699-49-9Relevant academic research and scientific papers
A NEW ROUTE TO HIGHLY SUBSTITUTED 1H-PYRROL-3(2H)-ONES
Adembri, Giorgio,Celli, Angela M.,Lampariello, Lucia R.,Scotton, Mirella,Sega, Alessandro
, p. 4023 - 4026 (2007/10/02)
Reaction of 3,4-diacetyl-3-hexen-2,5-dione, 1, with alkyl or aryl primary amines, 2a-g, led to highly substituted 1H-pyrrol-3(2H)-ones, 3a-g.The structure was established from a single crystal X-ray analysis of compound 3c.
