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93639-39-5

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93639-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93639-39-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,6,3 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 93639-39:
(7*9)+(6*3)+(5*6)+(4*3)+(3*9)+(2*3)+(1*9)=165
165 % 10 = 5
So 93639-39-5 is a valid CAS Registry Number.

93639-39-5Relevant articles and documents

Synthesis of 2-Aza-anthraquinone and 2-Azanaphthacenequinone 1-Chloro-derivatives as Key Intermediates for the Preparation of Antitumour Anthraquinone Analogues

Croisy-Delcey, Martine,Bisagni, Emile

, p. 897 - 898 (1984)

Lithiation of 2-(2-chloro-4-pyridyl)-4,4-dimethyl-4,5-dihydro-oxazole and subsequent condensation with aromatic aldehydes provides a four-step synthesis of both 1-chloro-2-aza-anthraquinone and 1-chloro-2-azanaphthacenequinone derivatives which are key in

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