155592-98-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155592-98-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,5,9 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 155592-98:
(8*1)+(7*5)+(6*5)+(5*5)+(4*9)+(3*2)+(2*9)+(1*8)=166
166 % 10 = 6
So 155592-98-6 is a valid CAS Registry Number.
InChI:InChI=1/C31H22N2O2/c34-30-26(21-22-13-5-1-6-14-22)27-28(23-15-7-2-8-16-23)32(24-17-9-3-10-18-24)31(35)29(27)33(30)25-19-11-4-12-20-25/h1-21,28H/b26-21-
155592-98-6Relevant articles and documents
INTRAMOLECULAR CYCLIZATION OF 1,5-DIARYL-3-ARYLAMINO-4-CARBOXYMETHYL-3-PYRROLIN-2-ONES
Gein, V. L.,Popov, A. V.,Vakhrin, M. I.,Andreichikov, Yu S.
, p. 1471 - 1473 (2007/10/02)
1,5-Diaryl-3-arylamino-4-carboxymethyl-3-pyrrolin-2-ones undergo ring closure to give the condensed 1,4,5-triaryl-2,3,4,6-tetrahydropyrrolopyrrole system when heated in acetic anhydride.The presence of aromatic aldehydes in the reaction mixture res