| Identification | More | [Name]
4-Nitro-3-picoline N-oxide | [CAS]
1074-98-2 | [Synonyms]
3-METHYL-4-NITROPYRIDINE 1-OXIDE
3-METHYL-4-NITROPYRIDINE N-OXIDE
4-NITRO-3-PICOLINE N-OXIDE
3-methyl-4-nitro-pyridin1-oxide
3-Picoline, 4-nitro-, 1-oxide
4-Nitro-3-methylpyridine N-oxide
4-Nitro-3-picoline 1-oxide
4-Nitro-beta-picoline N-oxide
5-Methyl-4-nitropyridine N-oxide
Pyridine, 3-methyl-4-nitro-, 1-oxide
3-METHYL-4-NITROPYRIDINE N-OXIDE 98%
4-Nitro-3-picoline-N-oxide 99%
4-Nitro-B-picoline N-oxide | [EINECS(EC#)]
214-050-8 | [Molecular Formula]
C6H6N2O3 | [MDL Number]
MFCD00014626 | [Molecular Weight]
154.12 | [MOL File]
1074-98-2.mol |
| Chemical Properties | Back Directory | [Appearance]
yellow crystalline needles or powder | [Melting point ]
135-139 °C | [Boiling point ]
277.46°C (rough estimate) | [density ]
1.4564 (rough estimate) | [refractive index ]
1.5100 (estimate) | [storage temp. ]
2-8°C | [form ]
Crystalline Needles or Powder | [pka]
-1.22±0.10(Predicted) | [color ]
Yellow | [BRN ]
140157 | [Major Application]
diagnostic assay manufacturing
hematology
histology | [InChI]
InChI=1S/C6H6N2O3/c1-5-4-7(9)3-2-6(5)8(10)11/h2-4H,1H3 | [InChIKey]
SSOURMYKACOBIV-UHFFFAOYSA-N | [SMILES]
C1[N+]([O-])=CC=C([N+]([O-])=O)C=1C | [CAS DataBase Reference]
1074-98-2(CAS DataBase Reference) | [NIST Chemistry Reference]
4-Nitro-3-picoline-n-oxide(1074-98-2) |
| Safety Data | Back Directory | [Symbol(GHS) ]
 
GHS07,GHS08 | [Signal word ]
Warning | [Hazard statements ]
H302+H312+H332-H315-H319-H335-H351 | [Precautionary statements ]
P280-P301+P312-P302+P352+P312-P304+P340+P312-P305+P351+P338-P308+P313 | [Hazard Codes ]
Xn,Xi | [Risk Statements ]
R40:Limited evidence of a carcinogenic effect.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37:Wear suitable protective clothing and gloves .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S22:Do not breathe dust . | [RIDADR ]
2811 | [WGK Germany ]
3 | [RTECS ]
UT5775000 | [Hazard Note ]
Irritant/Possible Mutagen | [HazardClass ]
6.1 | [PackingGroup ]
II | [HS Code ]
29333990 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Acute Tox. 4 Dermal
Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Carc. 2
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
| Hazard Information | Back Directory | [Description]
3-Methyl-4-nitropyridine N-Oxide is slightly soluble in water and soluble in common organic solvents such as ethanol. It belongs to the pyridine N-oxide class of heterocyclic compounds. It should be stored in a dry, cool, dark place away from heat sources and strong oxidants. This substance has a certain degree of toxicity, and protective measures should be taken when handling it. It is a core heterocyclic intermediate in the fields of medicine and pesticides and is mainly used to synthesize pyridine drugs and agricultural chemicals. | [Chemical Properties]
yellow crystalline needles or powder | [Uses]
diagnostic assay manufacturing
hematology
histology | [General Description]
3-Methyl-4-nitropyridine N-Oxide (POM) is an efficient nonlinear optical organic material having a high nonlinear coefficient and achieving the parametric emission process within the desired spectral range (1–2 μm). POM crystallizes in the orthorhombic class, space group P212121, and point group 222. It is a positive biaxial crystal. It melts at 136°C and the nonlinear coefficient is deff=10 pm/V[1]. This compound exhibits a negative-linear-compressibility (NLC) region as well as exceptionally large positive thermal expansion. The initial compression of the weak supramolecular network in the molecular POM crystal is analogous to the hydrostatic responses of the framework crystals with much stronger cohesion forces. 3-Methyl-4-nitropyridine N-Oxide is a commercial NLO material for pico- and femtosecond optics in the near-IR range[2].
| [Synthesis]
Nitration of picoline-N-oxide in the fourth position yields 3-Methyl-4-nitropyridine N-Oxide. Initially, Picoline-N-oxide (50 g) was melted at 38C and mixed with sulfuric acid (250 ml) in cold condition. Later, nitration of this mixture was done at room temperature by addition of sodium nitrate (70 g) and the solution was continuously stirred until all the solid particles dissolves. Temperature was increased slowly to 70C by keeping it in an oil bath and solution was stirred continuously for 2 h at this temperature. To ensure complete nitration, the solution was maintained about 95–100C for 12 h with continuous stirring. The reaction mixture was taken out from the oil bath and cooled. It is then poured over crushed ice and neutralized with ammonia solution till the pH reaches about 7–8. On cooling, bright yellow crystalline 3-Methyl-4-nitropyridine N-Oxide powder was obtained. It was washed and dried in vacuum[1].
| [References]
[1] Boomadevi, S. , H. P. Mittal , and R. Dhansekaran . "Synthesis, crystal growth and characterization of 3-methyl 4-nitropyridine 1-oxide (POM) single crystals."Journal of Crystal Growth 261.1(2004):55-62.
[2] Cai, Weizhao , et al. "Anomalous compression of a weakly CHO bonded nonlinear optical molecular crystal." Journal of Materials Chemistry C 2.32(2014). |
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