8.51086 EMD Millipore

Oxyma Pure

Oxyma Pure Novabiochem®. CAS 3849-21-6, molar mass 142.11 g/mol., Novabiochem®

Synonym: Ethyl cyano(hydroxyimino)acetate

  • CAS Number 3849-21-6

  • Linear Formula C₅H₆N₂O₃

  • Molecular Weight 142.11 g/mol

  •  EC Number 223-351-3



brand family   Novabiochem
packaging   100 g in Glass bottle (8510860100)
  25 g in Glass bottle (8510860025)
mp   130 - 132 °C
shipped in   ambient
storage temp.   Store at +2°C to +8°C.
specifications   Colour (visual): white to slight yellow to beige
  Appearance of substance (visual): crystalline powder
  Assay (HPLC, area%): ≥ 99.0 % (a/a)
  Identity (IR): passes test
  Solubility (12,5 mmol in 25 ml DMF): clearly soluble


Background information

Oxyma Pure is a non-explosive alternative to HOBt. When used in place of HOBt in carbodiimide-mediated coupling reactions it provides products in higher yields with less racemization [1].

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Safety Information

HS Code 
2928 00 90
Storage class 
10 - 13 Other liquids and solids
WGK 3 highly water endangering
Declaration (railroad and road) ADR, RID 
Kein Gefahrgut
Declaration (transport by air) IATA-DGR 
No Dangerous Good
Declaration (transport by sea) IMDG-Code 
No Dangerous Good
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