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93745-57-4

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93745-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93745-57-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,7,4 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 93745-57:
(7*9)+(6*3)+(5*7)+(4*4)+(3*5)+(2*5)+(1*7)=164
164 % 10 = 4
So 93745-57-4 is a valid CAS Registry Number.

93745-57-4Downstream Products

93745-57-4Relevant articles and documents

Convenient Synthesis of Fused Heterocycles from α-Ketohydroximoyl Chlorides and Heterocyclic Amines

Parkanyi, Cyril,Abdelhamid, Abdou O.,Cheng, John C. S.

, p. 1029 - 1032 (2007/10/02)

Nitroso derivatives of imidazopyridine (11,13,14), imidazopyrimidine (15), imidazopyrazine (16), imidazopyrazole (17), and imidazo-1,2,4-triazole (19) were obtained in good yields from α-ketohydroximoyl chlorides 3 and 2-aminopyrazines (4-6), 2-aminopyrimidine (7), 2-aminopyrazine (8), 5-amino-3-phenylpyrazole (9), and 3-amino-2H-1,2,4-triazole (10), respectively.Under different conditions, the reaction of 3 with 3-amino-2H-1,2,4-triazole (10) and 2-aminopyrazine (8) afforded the noncyclized substitution products 18 and 22, respectively.The structures of the products were assigned and confirmed on the basis of their elemental analyses, spectral data, and alternate synthesis wherever possible.

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