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124946-54-9

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124946-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124946-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,9,4 and 6 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 124946-54:
(8*1)+(7*2)+(6*4)+(5*9)+(4*4)+(3*6)+(2*5)+(1*4)=139
139 % 10 = 9
So 124946-54-9 is a valid CAS Registry Number.

124946-54-9Downstream Products

124946-54-9Relevant academic research and scientific papers

Synthesis of diselenides and selenides from elemental selenium

Krief, Alain,Derock, Michel

, p. 3083 - 3086 (2002)

Sodium hydride is able to reduce elemental selenium to sodium diselenide (Na2Se2), but not to sodium selenide (Na2Se). Dialkyl diselenides and even dialkyl selenides, including unsymmetrical dialkyl selenides, can be nevertheless synthesized using the proper Se/NaH ratio (1/1 or 1/2).

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