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1666-11-1

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1666-11-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1666-11-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,6 and 6 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1666-11:
(6*1)+(5*6)+(4*6)+(3*6)+(2*1)+(1*1)=81
81 % 10 = 1
So 1666-11-1 is a valid CAS Registry Number.

1666-11-1Relevant articles and documents

Synthesis of organic diselenide using zinc powder

Ping,Xunjun

, p. 1721 - 1725 (1993)

A new synthetic method of diselenide by reducing element selenium with zinc powder in basic environment, and then reacting with electrophiles is described. Nine diselenides are synthesized with yields between 52-90%.

LITHIUM DISELENIDE IN APROTIC MEDIUM - A CONVENIENT REAGENT FOR SYNTHESIS OF ORGANIC DISELENIDES

Syper, Ludwik,Mlochowski, Jacek

, p. 6119 - 6130 (2007/10/02)

The reduction of selenium with lithium in THF in the presence of diphenylacetylene as a catalyst afforded lithium diselenide, which reacted with electrophiles giving alkyl or aryl diselenides 1 - 3 and selenides 4, as by-products.The useful method for preparation of diselenides based on this reaction was elaborated.

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