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79924-98-4

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79924-98-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79924-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,9,2 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 79924-98:
(7*7)+(6*9)+(5*9)+(4*2)+(3*4)+(2*9)+(1*8)=194
194 % 10 = 4
So 79924-98-4 is a valid CAS Registry Number.

79924-98-4Downstream Products

79924-98-4Relevant articles and documents

SEMICARBAZONES AND THIOSEMICARBAZONES OF THE ACYCLIC AND CARBOCYCLIC SERIES. II. Z,E ISOMERISM OF CAMPHORQUINONE DERIVATIVES

Tomchin, A. B.,Lepp, Yu. V.

, p. 1117 - 1124 (2007/10/02)

The geometric structure of camphorquinone semicarbazones and thiosemicarbazones has been established by spectral methods.Since the barrier to the Z,E isomerization of acylhydrazones is lowered when the electron-acceptor influence of the acyl residue is increased and depends little on the dielectric constant of the solvent, the isomerization takes place according to an inversion mechanism.The isomerization is catalyzed by solvents with high basicity.

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