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78119-22-9

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78119-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78119-22-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,1,1 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 78119-22:
(7*7)+(6*8)+(5*1)+(4*1)+(3*9)+(2*2)+(1*2)=139
139 % 10 = 9
So 78119-22-9 is a valid CAS Registry Number.

78119-22-9Relevant articles and documents

A Synthesis of Pseudouridine

Brown, Daniel M.,Ogden, Richard C.

, p. 723 - 725 (2007/10/02)

2,3,5-Tri-O-benzylribose and 2,4-di-t-butoxy-5-lithiopyrimidine (from the 5-bromo-compound and butyllithium) in THF at -78 deg C give 5-(2,3,5-tri-O-benzyl-D-altro-pentahydroxypentyl)-2,4-di-t-butoxypyrimidine and its D-allo-epimer (ratio 5:2), which cyclise sterospecifically in ethanolic hydrochloric acid to 5-(2,3,5-tri-O-benzyl-β-D-ribofuranosyl)uracil and its α-anomer.Debenzylation by boron trichloride gives 5-β-D-ribofuranosyluracil, pseudouridine, and its α-anomer. 2,3,5-Tri-O-methylribose reacts analogously. 2,3-O-Isopropylideneribose and its 5-O-trityl derivative give no polyol, but instead 2,4-di-t-butoxy-5-(2-hydroxyisopropyl)pyrimidine.

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