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42497-87-0

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42497-87-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42497-87-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,9 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42497-87:
(7*4)+(6*2)+(5*4)+(4*9)+(3*7)+(2*8)+(1*7)=140
140 % 10 = 0
So 42497-87-0 is a valid CAS Registry Number.

42497-87-0Relevant articles and documents

Sulfite-promoted one-pot synthesis of sulfides by reaction of aryl disulfides with alkyl halides

Tang, Ri-Yuan,Zhong, Ping,Lin, Qiu-Lian

, p. 85 - 91 (2007)

A sodium dithionite, sodium thiosulfate and rongalite promoted one-pot synthesis of aryl alkyl sulfides at room temperature has been developed. The reactions of a range of disulfides with alkyl halides proceeded smoothly in the presence of rongalite. Possible reaction pathways are discussed and the effects of these sulfites on disulfides are investigated. The important features of this protocol are metal-free, strong-base-free, and mild reaction conditions, operational simplicity, short reaction times and high yields of products. Georg Thieme Verlag Stuttgart.

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