| | Identification | Back Directory |  | [Name] 
 4-NITRO-3-(OCTANOYLOXY)BENZOIC ACID
 |  | [CAS] 
 55894-52-5
 |  | [Synonyms] 
 VDCATWRTRISVBZ-UHFFFAOYSA-N
 4-NITRO-3-(OCTANOYLOXY)BENZOIC ACID
 4-Nitro-3-[(1-oxooctyl)oxy]benzoic Acid
 Benzoic acid, 4-nitro-3-[(1-oxooctyl)oxy]-
 |  | [Molecular Formula] 
 C15H19NO6
 |  | [MDL Number] 
 MFCD00132973
 |  | [MOL File] 
 55894-52-5.mol
 |  | [Molecular Weight] 
 309.31
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 146 - 148°C
 |  | [storage temp. ] 
 RT
 |  | [solubility ] 
 Soluble in DMSO (up to 25 mg/ml) or in Ethanol (up to 25 mg/ml).
 |  | [form ] 
 Off-white solid.
 |  | [color ] 
 White
 |  | [Stability:] 
 Stable for 2 years from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 3 months
 | 
 | Hazard Information | Back Directory |  | [Description] 
 NOBA (55894-52-5) is a chromogenic substrate for phospholipases such as PLA2. Read absorbance at 425 nm.
 |  | [Uses] 
 4-Nitro-3-[(1-oxooctyl)oxy]benzoic acid is used to acrylate ε-amino groups of Lysine (L468895) in order to immobilize phospholipase A2 in snake venom.
 |  | [References] 
 1) Cho & Kezdy (1991), Chromogenic Substrates and assay of phospholipases A2; Methods Enzymol., 197 75
2) Petrovic et al. (2001), A simple assay for a human serum phospholipase A2 that is associated with high density lipoproteins; J. Lipid Res., 42 1706
3) Bonfim et al. (2008), Structural and functional characterization of myotoxin, Cr-IV 1, a phospholipase A2 D49 from the venom of the snake Calloselasma rhodostoma; Biologicals, 36 168
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