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75250-48-5

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75250-48-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75250-48-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,5 and 0 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 75250-48:
(7*7)+(6*5)+(5*2)+(4*5)+(3*0)+(2*4)+(1*8)=125
125 % 10 = 5
So 75250-48-5 is a valid CAS Registry Number.

75250-48-5Relevant articles and documents

Organic Tellurium and Selenium Chemistry. Reduction of Tellurides, Selenides, and Selenoacetals with Triphenyltin Hydride

Clive, Derrick L. J.,Chittattu, Gim J.,Farina, Vittorio,Kiel, William A.,Menchen, Steven M.,et al.

, p. 4438 - 4447 (2007/10/02)

Preparative and mechanistic details are described for the conversion of selenides into hydrocarbons RH> by heating with triphenyltin hydride at about 120 deg C.The process has been extended to selenoacetals in a form that constitutes a reduction methods for carbonyl compounds RR'C(SePh)2 -> RR'CH2>.Selective reduction of selenoacetals in the presence of thioacetals is possible.Cold-labeled species can be prepared by using triphenyltin deuteride.Tellurides are available easily without problems arising from exposure to air provided that the work is done in a photographic darkroom equipped with a red safety light.These tellurides, as well as the corresponding dichlorides , are reduced under very mild conditions (25-80 deg C) by triphenyltin hydride.The selenium- and tellurium-based chemistry has been used for the unusual process of reducing an epoxide in the presence of a ketone carbonyl.

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