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199807-49-3

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199807-49-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199807-49-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,8,0 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 199807-49:
(8*1)+(7*9)+(6*9)+(5*8)+(4*0)+(3*7)+(2*4)+(1*9)=203
203 % 10 = 3
So 199807-49-3 is a valid CAS Registry Number.

199807-49-3Downstream Products

199807-49-3Relevant articles and documents

The synthesis of sultines from δ-hydroxy sulfoxides revisited

Connolly, Terrence J.,Durst, Tony

, p. 1337 - 1340 (2007/10/03)

A re-examination of a previously thought general synthesis of sultines from δ-hydroxy sulfoxides is shown to be more complicated than originally believed. The products obtained can be α,α'-dihaloxylenes or δ-halosulfones. The results are best interpreted based on carbocation stability of the key oxo-sulfoxonium salt intermediate.

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