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89523-40-0

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89523-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89523-40-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,2 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 89523-40:
(7*8)+(6*9)+(5*5)+(4*2)+(3*3)+(2*4)+(1*0)=160
160 % 10 = 0
So 89523-40-0 is a valid CAS Registry Number.

89523-40-0Relevant articles and documents

Hydrolysis of Acyl Derivatives of N1,N2-Diarylamidine. I

Ono, Machiko,Tanaka, Hinako,Hayakawa, Kazuhide,Tamura, Shinzo

, p. 3534 - 3543 (2007/10/02)

The alkaline hydrolyses of N1-benzoyl-N1,N2-diarylacetamidine (V) and N1-tosyl-N1,N2-diarylacetamidine (IX) were examined.In the hydrolysis of V, hydroxide ion attacked the amide carbonyl carbon to form N1,N2-diarylacetamidine and benzoic acid.In the hydrolysis of IX, hydroxide ion attacked the amidine carbon, and elimination of the N-tosylarylamino group and arylimino group proceeded in parallel, with that of the latter predominating.The alcoholysis reaction of V proceeded without any added catalyst, in contrast to the case of 1-(N-benzoylarylamino)-3-arylimino-1-propene.A unique peak corresponding to the loss of 64 mass units (sulfur dioxide) was observed in the mass spectrum of IX.Keywords - alkaline hydrolysis; alcoholysis; N1-benzoyl-N1,N2-diarylacetamidine; N1-tosyl-N1,N2-diarylacetamidine; 1,1-bis(N-benzoylarylamino)ethene; MS

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