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497181-12-1

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497181-12-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 497181-12-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,7,1,8 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 497181-12:
(8*4)+(7*9)+(6*7)+(5*1)+(4*8)+(3*1)+(2*1)+(1*2)=181
181 % 10 = 1
So 497181-12-1 is a valid CAS Registry Number.

497181-12-1Relevant articles and documents

Odorless diphenyl diselenide and disulfide: Syntheses and applications

Patra, Pranab K.,Shanmugasundaram, Kandasamy,Matoba, Manabu,Nishide, Kiyoharu,Kajimoto, Tetsuya,Node, Manabu

, p. 447 - 457 (2007/10/03)

Bis[4-(trimethylsilyl)phenyl]diselenide (3) and bis[4-(trimethylsilyl) phenyl]disulfide (31) are found to be odorless equivalents of the commonly used diphenyl diselenide and diphenyl disulfide, respectively. The diselenide 3 is shown to be useful in the preparation of odorless selenium(II) chloride 26 and selenium(IV) trichloride 28 that follow similar reactivity patterns to their phenyl derivatives and can be stored refrigerated under dry conditions. The corresponding selenium(II) bromide had to be prepared fresh from 3 before use. It is also shown that the trimethylsilyl group in the sulfide products can be protodesilylated quantitatively using TFA. Georg Thieme Verlag Stuttgart.

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