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74491-16-0

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74491-16-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74491-16-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,9 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 74491-16:
(7*7)+(6*4)+(5*4)+(4*9)+(3*1)+(2*1)+(1*6)=140
140 % 10 = 0
So 74491-16-0 is a valid CAS Registry Number.

74491-16-0Relevant articles and documents

Cycloelimination of β-Silylethyl Sulphoxides: Alkene, Alkyne, and Vinylsilane-forming Reactions

Fleming, Ian,Goldhill, Jon,Perry, David A.

, p. 1563 - 1570 (2007/10/02)

The cycloelimination (1)->(3) of trimethylsilyl sulphenate from a β-silylethyl sulphoxide is slightly faster than the corresponding cycloelimination (2)->(3) of sulphenic acid itself.The former type of reaction can be used to form acetylenes (

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