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900143-78-4

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900143-78-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 900143-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,1,4 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 900143-78:
(8*9)+(7*0)+(6*0)+(5*1)+(4*4)+(3*3)+(2*7)+(1*8)=124
124 % 10 = 4
So 900143-78-4 is a valid CAS Registry Number.

900143-78-4Downstream Products

900143-78-4Relevant articles and documents

Regioselective synthesis of N-substituted-4-substituted isothiazolidine-1,1-dioxides

Cleator, Ed,Sheen, Faye J.,Bio, Matthew M.,Jos Brands,Davies, Antony J.,Dolling, Ulf-H.

, p. 4245 - 4248 (2006)

A novel and efficient synthesis of a range of racemic and enantioenriched N-substituted-4-substituted isothiazolidine-1,1-dioxides from epoxides and sulfonamides is described. The critical choice of the activating group for the cyclization event is discussed. The application of this methodology to the synthesis of N-substituted-4,5-disubstituted derivatives is also described.

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