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25316-06-7

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25316-06-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25316-06-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,3,1 and 6 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 25316-06:
(7*2)+(6*5)+(5*3)+(4*1)+(3*6)+(2*0)+(1*6)=87
87 % 10 = 7
So 25316-06-7 is a valid CAS Registry Number.

25316-06-7Downstream Products

25316-06-7Relevant articles and documents

Hydrazinolysis of Unsaturated Azlactones and Cyclisation of the Acrylic Acid Hydrazides into Tetrahydrotriazine, Pyrazolidine and Imidazoline Derivatives

Tikdari, Ahmad M.,Mukerjee, Arya K.

, p. 81 - 83 (2007/10/02)

Hydrazinolysis of 4-arylmethylene-2-oxazolin-5-ones (1) gives the corresponding acrylic acid hydrazides (5) among which the N-substituted hydrazides (5; R2=H) afford 5-aryl-methylene-3-phenyl-1,2,5,6-tetrahydro-1,2,4-triazin-6-ones (8) on heating with aq. sodium hydroxide and with excess of hydrazine hydrate, respectively.However, the N-phenylhydrazides (5; R2=Ph) give the corresponding 1-anilinio-4-arylmethylene-2-phenyl-2-imidazolin-5-ones (9) by simple heating.All steps can be carried out in the same flask.

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