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74530-32-8

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74530-32-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74530-32-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,3 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74530-32:
(7*7)+(6*4)+(5*5)+(4*3)+(3*0)+(2*3)+(1*2)=118
118 % 10 = 8
So 74530-32-8 is a valid CAS Registry Number.

74530-32-8Downstream Products

74530-32-8Relevant articles and documents

Amidines. Part 31. pKa Values of N1,N1-Dialkyl-N2-phenylformamidines in Water-Ethanol Solutions

Oszczapowicz, Janusz,Jaroszewska-Manaj, Jolanta

, p. 1677 - 1680 (2007/10/02)

The pKa values of three series (30 compounds in all) of N1,N1-dialkyl-N2-phenylformamidines (XC6H4N=CHNRR) have been measured in water-ethanol mixtures.The obtained pKa values of the amidines have been correlated with Hammett-type substituent constants and the pKa values of the corresponding primary amines determined in the same solvent.The applicability of various ? values is discussed and it is shown that, in each case, for substituents on the phenyl ring at the amino nitrogen atom ?0 values should be used.It is found that the slopes of regression lines for correlations with Hammett-type constants depend on the substituents at the amino nitrogen atom, as well as on the solvent.

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