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22277-50-5

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22277-50-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22277-50-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,2,7 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 22277-50:
(7*2)+(6*2)+(5*2)+(4*7)+(3*7)+(2*5)+(1*0)=95
95 % 10 = 5
So 22277-50-5 is a valid CAS Registry Number.

22277-50-5Relevant articles and documents

ORGANOPHOSPHORUS COMPOUNDS, CATALYTIC SYSTEMS COMPRISING SAID COMPOUNDS AND METHOD OF HYDROCYANATION USING SAID CATALYTIC SYSTEMS

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Paragraph 0099; 0100, (2013/03/26)

The present invention relates to organophosphorus compounds belonging to the phosphinite-phosphite family, catalytic systems comprising a metallic element forming a complex with said phosphinite-phosphite compounds and methods of hydrocyanation employed in the presence of said catalytic systems.

Total synthesis of the potent antitumor polyketide (-)-callystatin A

Dias, Luiz C.,Meira, Paulo R. R.

, p. 4762 - 4773 (2007/10/03)

A highly convergent and efficient total synthesis of the potent antitumor polyketide (-)-callystatin A is described. The synthesis required 19 steps from N-propionyl oxazolidinone 23 and produced the desired product in 3.5% overall yield.

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