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745070-67-1

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745070-67-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 745070-67-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,5,0,7 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 745070-67:
(8*7)+(7*4)+(6*5)+(5*0)+(4*7)+(3*0)+(2*6)+(1*7)=161
161 % 10 = 1
So 745070-67-1 is a valid CAS Registry Number.

745070-67-1Downstream Products

745070-67-1Relevant articles and documents

Synthetic method for 1,3,5-triaminobenzene

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Paragraph 0124, (2018/09/13)

The invention provides a synthetic method for 1,3,5-triaminobenzene. The method comprises the following steps: with phloroglucinol as shown in a structural formula IV which is described in the specification as a reaction raw material, subjecting the phloroglucinol and hydroxylamine hydrochloride to an oxime-forming reaction under an alkaline condition, and carrying out filtering and drying treatment so as to obtain 1,3,5-cyclohexanetrione oxime as shown in a structural formula III which is described in the specification; and subjecting the 1,3,5-cyclohexanetrione oxime to a hydrogenation reaction, and carrying out purification treatment so as to obtain 1,3,5-triaminobenzene as shown in a structural formula II which is described in the specification. According to the invention, a starting raw material used in the method is the phloroglucinol which is cheap and easily-available; an intermediate namely the 1,3,5-cyclohexanetrione oxime is non-explosive and facilitates separation and purification; and compared with a conventional method, the method provided by the invention has low cost and safe process. The method for preparation of the 1,3,5-triaminobenzene provided by the inventionadopts a hydrazine hydrate solution as a reducing reagent, does not need using strong acid and strong alkali, or catalytic hydrogenation under a normal pressure, and has the advantages of simple process, safety, low cost and environment friendliness.

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