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33730-49-3

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33730-49-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33730-49-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,7,3 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 33730-49:
(7*3)+(6*3)+(5*7)+(4*3)+(3*0)+(2*4)+(1*9)=103
103 % 10 = 3
So 33730-49-3 is a valid CAS Registry Number.

33730-49-3Relevant academic research and scientific papers

Hydrofluorocarbon 245fa: A versatile new synthon in alkyne chemistry

Brisdon, Alan K.,Crossley, Ian R.

, p. 2420 - 2421 (2002)

The CFC replacement 1,1,1,3,3-pentafluoropropane (HFC 245fa) has been established as a convenient source of trifluoropropynyllithium under mild conditions; a range of novel and known trifluoropropynyl-containing systems has been prepared in a one-pot procedure.

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