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33831-33-3

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33831-33-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33831-33-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,3 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 33831-33:
(7*3)+(6*3)+(5*8)+(4*3)+(3*1)+(2*3)+(1*3)=103
103 % 10 = 3
So 33831-33-3 is a valid CAS Registry Number.

33831-33-3Relevant articles and documents

Organoboron Compounds, I. - Transformation of Phosphonium Ylides into Phosphane Monoalkylborane Complexes. - Hydroboration Reactions

Bestmann, Hans Juergen,Roeder, Thomas,Suehs, Kurt

, p. 1509 - 1518 (2007/10/02)

Triphenylphosphonium ylides 1 add borane (from 2) with formation of alkylidenetriphenylphosphorane-boranes 3, which rearrange on heating to give the triphenylphosphane-monoalkylborane adducts 6.Compounds 6 can undergo hydroboration reactions.

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