54131-15-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54131-15-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,1,3 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 54131-15:
(7*5)+(6*4)+(5*1)+(4*3)+(3*1)+(2*1)+(1*5)=86
86 % 10 = 6
So 54131-15-6 is a valid CAS Registry Number.
54131-15-6Relevant articles and documents
REACTIVITY OF ARYLCINNAMATES IN POLYPHOSPHORIC ACID (PPA): CYCLISATION AND REARRANGEMENT REACTIONS
Dupin, Jean-Francois E.,Chenault, Jacques
, p. 2401 - 2404 (2007/10/02)
In polyphosphoric acid (PPA), various phenyl-substituted cinnamates react to give 4-phenyl-3,4-dihydrocoumarins, flavanones or 3-phenylindanone owing to the nature of the substituents on the phenyl moiety.