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433683-21-7

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433683-21-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 433683-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,3,6,8 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 433683-21:
(8*4)+(7*3)+(6*3)+(5*6)+(4*8)+(3*3)+(2*2)+(1*1)=147
147 % 10 = 7
So 433683-21-7 is a valid CAS Registry Number.

433683-21-7Relevant articles and documents

The base-induced cascade rearrangement of 4-acetylamino-3-arylazo-1,2,5-oxadiazole 2-oxides (furoxans) into 4-acetylamino-2-aryl-5-nitro-2H-1,2,3-triazoles

Baryshnikova, Ekaterina L.,Kulikov, Alexander S.,Ovchinnikov, Igor V.,Solomentsev, Vladimir V.,Makhova, Nina N.

, p. 230 - 232 (2007/10/03)

4-Acetylamino-3-arylazo-1,2,5-oxadiazole 2-oxides (furoxans) undergo two successive (cascade) mononuclear heterocyclic rearrangements in an aqueous basic medium with the formation of 4-acetylamino-2-aryl-5-nitro-2H-1,2,3-triazoles.

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