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78968-45-3

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78968-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78968-45-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,6 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 78968-45:
(7*7)+(6*8)+(5*9)+(4*6)+(3*8)+(2*4)+(1*5)=203
203 % 10 = 3
So 78968-45-3 is a valid CAS Registry Number.

78968-45-3Relevant articles and documents

THE SYNTHESIS AND CYCLISATIOM OF THIOACYLATED DIAMINOGUANIDINES

Kurzer, Frederic,Secker, Jane L.

, p. 1429 - 1436 (2007/10/02)

The thiobenzoylation of 1,2-diaminoguanidine yields 1-amino-2-thioaroylamidoguanidines which are isolable as their stable hydrazones.They are unaffected by alkalis, but are cyclised by mineral acids, with loss of ammonia, to hydrazones of 2-aryl-5-hydrazino-1,3,4-thiadiazoles, or with elimination of hydrazine, to the appropriate 2-amino-5-aryl-1,3,4-thiadiazoles.The action of acetic anhydride effects the same ring-closures, yielding the corresponding acetylated products. 1,2-Diamino-3-phenylguanidine undergoes a comparable series of reactions.

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