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70223-96-0

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70223-96-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70223-96-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,2,2 and 3 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 70223-96:
(7*7)+(6*0)+(5*2)+(4*2)+(3*3)+(2*9)+(1*6)=100
100 % 10 = 0
So 70223-96-0 is a valid CAS Registry Number.

70223-96-0Relevant articles and documents

A convenient synthesis of peracetylated glycosyl halides using bismuth(III) halides as catalysts

Montero, Jean-Louis,Winum, Jean-Yves,Leydet, Alain,Kamal, Mehrnaz,Pavia, Andre A.,Roque, Jean-Pierre

, p. 175 - 180 (1997)

A new halogenation procedure for peracetylated glycopyranosides is reported, using bismuth(III) halides and halogenosilanes under very mild conditions.

Halogenation and anomerization of glycopyranoside by TESH/bromine and BHQ/bromine

Xu, Lai,Luo, Chin-Hung,Chen, Chien-Sheng

, p. 315 - 321 (2020/07/13)

Treatment of peracetylated glycosides and β-isopropyl glycosides with halogen in the presence of TESH and BHQ has been found to result in the halogenation and the anomerization, respectively. Peracetylatedglycosides treaded with I2/TESH or Br2/TESH leading tothe formation of corresponding glycosyl halides, and b-isopropyl glycosidesreacted with Br2/BHQ resulting in the formation of a-glycosides. The anomerizationof glycosidic bond was considered to be catalyzed by in situ formation of hydrogenbromide from the mixing of Br2/BHQ.

Chemical synthesis of 5’-β-glycoconjugates of vitamin B6

Bachmann, Thomas,Schnurr, Christian,Zainer, Laura,Rychlik, Michael

supporting information, (2020/02/15)

Various 5’-β-saccharides of pyridoxine, namely the mannoside, galactoside, arabinoside, maltoside, cellobioside and glucuronide, were synthesized chemically according to KOENIGS-KNORR conditions using α4,3-O-isopropylidene pyridoxine and the respective acetobromo glycosyl donors with AgOTf (3.0 eq.) and NIS (3.0 eq.) as promoters at 0 °C. Furthermore, 5’-β-[13C6]-labeled pyridoxine glucoside (PNG) was prepared starting from [13C6]-glucose and pyridoxine. Additionally, two strategies were examined for the synthesis of 5’-β-pyridoxal glucoside (PLG).

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