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90443-55-3

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90443-55-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90443-55-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,4 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 90443-55:
(7*9)+(6*0)+(5*4)+(4*4)+(3*3)+(2*5)+(1*5)=123
123 % 10 = 3
So 90443-55-3 is a valid CAS Registry Number.

90443-55-3Downstream Products

90443-55-3Relevant articles and documents

Synthetic and Spectroscopic Studies of Phosphoranides - and the Crystal and Molecular Structure of

Deng, Robert M. K.,Dillon, Keith B.,Sheldrick, William S.

, p. 551 - 554 (1990)

Several new phosphoranides of the type (R'= Me, Et, Ph, or C6F5; X = Cl, Br, I, or NCS) have been synthesised, and characterised by means of 31P n.m.r. spectroscopy, elemental analysis, and (in some cases) i.r. spectroscopy.These are the first simple phosphoranides to be prepared with an organo group bound directly to phosphorus.Determination of the crystal structure of has shown a monomeric distorted ψ-trigonal bipyramidal geometry for the anion, with the phenyl group equatorial and one very long P-Cl axial bond, as observed previously in the - ion.Halide ions did not form phosphoranides with PBut(CN)2, PMe2(CN), or PPh2(CN).

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