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78344-55-5

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78344-55-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78344-55-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,3,4 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 78344-55:
(7*7)+(6*8)+(5*3)+(4*4)+(3*4)+(2*5)+(1*5)=155
155 % 10 = 5
So 78344-55-5 is a valid CAS Registry Number.

78344-55-5Downstream Products

78344-55-5Relevant articles and documents

SEMICARBAZONES AND THIOSEMICARBAZONES OF THE HETEROCYCLIC SERIES. XLIV. CYCLIZATION OF ISATIN AND 1-ACETYLISATIN 3-THIOBENZOYLHYDRAZONES

Tomchin, A.B.

, p. 504 - 510 (2007/10/02)

Isatin 3-thiobenzoylhydrazone undergoes cyclization with the addition of the sulfur atom to the C3 atom and closure of the thiadiazole ring.In contrast, 3-thioaroylhydrazones of 1-acetylisatin undergo cyclization with participation of C2 and close the thiadiazine ring with the formation of derivatives of the new heterocyclic system thiadiazinoindole.

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