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850996-94-0

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850996-94-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 850996-94-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,0,9,9 and 6 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 850996-94:
(8*8)+(7*5)+(6*0)+(5*9)+(4*9)+(3*6)+(2*9)+(1*4)=220
220 % 10 = 0
So 850996-94-0 is a valid CAS Registry Number.

850996-94-0Relevant articles and documents

Highly efficient approach to orthogonally protected (2S,4R)- and (2S,4S)-4-hydroxyornithine

Paintner, Franz F.,Allmendinger, Lars,Bauschke, Gerd,Klemann, Patricia

, p. 1423 - 1426 (2005)

(Chemical Equation Presented) A concise stereoselective approach to both orthogonally protected (25,4A)- and (2S,4S)-4-hydroxyornithine, key constituents of the biphenomycin-and clavalanine-type antibiotics, respectively, has been developed. The approach is based on bis(oxazoline) copper(II)-complex-catalyzed diastereoselective Henry reactions of nitromethane with the homoserine-derived aldehyde 6. The synthesis of this versatile chiral building block has been markedly improved.

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