87543-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87543-17-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,5,4 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87543-17:
(7*8)+(6*7)+(5*5)+(4*4)+(3*3)+(2*1)+(1*7)=157
157 % 10 = 7
So 87543-17-7 is a valid CAS Registry Number.
87543-17-7Relevant articles and documents
Cycloadditions: Part VI - Dynthesis of Isoxazolylnaphthoxazines
Rajanarendar, E.,Rao, C. Janakiram,Murthy, A. Krishna
, p. 425 - 428 (2007/10/02)
1,3-Diaryl-2-(3-methyl-5-styryl-4-isoxazolyl)-2,3-dihydro-1H-naphthoxazines (3) have been prepared by the cycloaddition of β-naphthol to 4-benzalamino-3-methyl-5-styrylisoxazoles (2).Reaction with α-naphthol leads to the analogous oxazines (18
