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1312947-71-9

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1312947-71-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1312947-71-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,2,9,4 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1312947-71:
(9*1)+(8*3)+(7*1)+(6*2)+(5*9)+(4*4)+(3*7)+(2*7)+(1*1)=149
149 % 10 = 9
So 1312947-71-9 is a valid CAS Registry Number.

1312947-71-9Relevant articles and documents

Synthesis and antibacterial activity of isochromene and isoquinoline derivative

Dabholkar, Vijay V.,Tripathi, Dilip R.

, p. 529 - 532 (2011/07/31)

Synthesis of 4-thioureidobenzoic acid (2), which on cyclization with ethyl chloroacetate gave 4-(2-imino-5-oxothiazolidin-3-yl)-benzoic acid (3), which on further reacting with benzoin (4) in the presence of polyphosphoric acid afforded the synthesis of 2-imino-3-(-1-oxo-3,4-diphenyl-1H-isochromen-6-yl) thiazolidin-5-one (5). Compound 5 was then reacted with substituted anilines to give 6-(2-imino-5-oxothiazolidin-3-yl)-3,4-diphenyl-2-(substituted)-isoquinolin- 1(2H)-one (6). The structures of the compounds have been elucidated on the basis of IR 1HNMR, 13C NMR, and elemental analysis. Representative samples were screened for their antimicrobial activity against gram-negative bacteria, E. coli and P. aeruginosa and gram-positive bacteria, S. aureus, and C. diphtheriae using disc diffusion method.

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