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19732-23-1

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19732-23-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19732-23-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,3 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19732-23:
(7*1)+(6*9)+(5*7)+(4*3)+(3*2)+(2*2)+(1*3)=121
121 % 10 = 1
So 19732-23-1 is a valid CAS Registry Number.

19732-23-1Downstream Products

19732-23-1Relevant articles and documents

Phosphorus-Nitrogen Compounds. Part 49. The Synthesis and Mechanism of Formation of 6-Chloro-5,6,7,12-tetrahydro-2,5,7,10-tetramethyldibenzo-diazaphosphocine 6-Oxide and 6-Sulphide

Demir, Tuersen,Shaw, Robert A.

, p. 1547 - 1552 (2007/10/02)

A reaction mechanism is proposed for the formation of the title compounds in the reactions between N,N-dimethyl-p-toluidine and phosphoryl and thiophosphoryl chlorides.The synthesis of 2,2'-methylenebis(p-toluidine) and 2,2'-methylenebis(N-methyl-p-toluidine) are described, as are their reactions with phosphoryl and thiophosphoryl chlorides.

The preparation of some fused isothiazole derivatives

McKinnon, David M.,Duncan, K.Ann,McKinnon, Aileen M.,Spevack, Perry A.

, p. 882 - 886 (2007/10/02)

The treatment of di(2-amino-5-methylphenyl)methane with N-sulfinylmethanesulfonamide gives two materials, 3-(2-amino-5-methylphenyl)-5-methyl-2,1-benzisothiazole and what appears to be its tautomer, a 2,1-benzisothiazolo-2,1-benzisothiazole derivative.Reaction of the former with methyl iodide gives mono-, di-, and trimethyl derivatives.The second of these also possesses the symmetrical 2,1-benzisothiazolo-2,1-benzisothiazole structure.The structure of the other methylation product and of the acetylation products are discussed.Some 1,2-dithiol-3-ylidene-2-pyridylmethanes were made by condensation of 3-alkylthio-1,2-dithiolium salts with methyl 2-pyridylacetate.These demonstrate little sulfur-nitrogen interaction. 3-Methylthio-4-phenyl-1,2-dithiolium iodide reacts anomalously with methyl 2-pyridylacetate to form a quinolizinethione. 1,2-Benzisothiazolopyridinium triiodide was made by iodine oxidation of 2-(2-mercaptophenylpyridine).

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