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73490-90-1

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73490-90-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73490-90-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,9 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 73490-90:
(7*7)+(6*3)+(5*4)+(4*9)+(3*0)+(2*9)+(1*0)=141
141 % 10 = 1
So 73490-90-1 is a valid CAS Registry Number.

73490-90-1Relevant articles and documents

Synthesis of Some New &β-Lactams, 4-Thiazolidinones and Pyrazolines

Fahmy, A. M.,Hassan, Kh. M.,Khalaf, A. A.,Ahmed, R. A.

, p. 884 - 887 (2007/10/02)

N-Arylidene-p-aminoacetophenone (I) and N-arylidene-4'-aminochalcones (V) have been converted into a series of substituted β-lactams (III) and 4-thiazolidinones (IV), and pyrazolines (VI, VII) respectively. p-Chloroacetamidoacetophenone (II) has also been converted into series of substituted 4'-piperidino/morpholinoacetoamidochalcones (X) which undergo cyclization on treatment with hydrazine, phenylhydrazine or thiourea to pyrazolines (XI, XII) and pyrimidine-2-thiones (XIII) respectively.The antibacterial and antifungal activities of the compounds have been determined.

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