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417715-54-9

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417715-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 417715-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,7,7,1 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 417715-54:
(8*4)+(7*1)+(6*7)+(5*7)+(4*1)+(3*5)+(2*5)+(1*4)=149
149 % 10 = 9
So 417715-54-9 is a valid CAS Registry Number.

417715-54-9Downstream Products

417715-54-9Relevant articles and documents

Efficient synthesis and crystal structure of 2-propyl-5-(substituted)phenyl-1,4-dioxo-1,2,3,4,5,6,7,8-octahydro-[1,4,2]diazap hosphorino[1,2-a][1,3,2]benzodiazaphosphorine 3-oxides

Huang, Junmin,Chen, Hui,Chen, Ruyu

, p. 63 - 71 (2007/10/03)

In order to search for novel antitumor and antiviral agents with high activity and low toxicity, some 2-propyl-5-(substituted)phenyl-1,4-dioxo-1,2,3,4,5,6,7,8-octahydro-[1,4,2]diazap hosphorino[1,2-a][1,3,2]benzodiazaphosphorine 3-oxides (2a-e) have been designed incorporating the proximate carbonyl and phosphoryl groups into the benzoannulated phosphadiamide heterocycle and synthesized in acceptable yields. These compounds contain the proximate carbonyl and phosphoryl groups in the fused heterocycle. Their structures were confirmed by spectroscopic methods and microanalyses. The results from X-ray crystallography analysis of 2a showed that the proximate carbonyl and phosphoryl groups are not coplanar because of their being jointly located in the fused heterocycle, having ring tension, and this then destroys the conjugation between the C=O and the P=O moieties. As a result, the length of the P-C bonds measured as 1.851(3)-1.852(3) A are just the same as that of a P-C bond not involved in conjugation (1.80-1.85 A). Also, the C(1), C(2), C(3), N(2), N(3), and P(1) atoms of the [1,4,2]diazaphosphorino moiety exist preferably in the boat conformation. The coplanar C(1), C(3), N(2), and N(3) atoms, within an average deviation of 0.0102, A, form the ground floor of the boat conformation, whereas the P(1) and C(2) atoms are on the same side of the coplanar structure with the distance of 0.7067 and 0.6315 A, respectively.

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