ChemicalBook CAS DataBase List 99-51-4

99-51-4

Name	4-Nitro-o-xylene
CAS	99-51-4
EINECS(EC#)	202-761-6
Molecular Formula	C8H9NO2
MDL Number	MFCD00007268
Molecular Weight	151.16
MOL File	99-51-4.mol

Synonyms

1,2-DIMETHYL-4-NITROBENZENE 3,4-DIMETHYLNITROBENZENE 4-NITRO-1,2-DIMETHYLBENZENE 4-NITRO-O-XYLENE 1,2-dimethyl-4-nitro-benzen 3,4-Dimethyl-1-nitrobenzene 4-nitro-o-xylen o-Xylene, 4-nitro- para-Nitro-ortho-xylene p-Nitro-o-xylene 4-Nitro-2-xylene 4-NITRO-O-XYLENE OEKANAL, 250 MG 4-NITRO-ORTHO-XYLENE, 99% 4-Nitro-0-Xylene 3,4-dimethylntrobenzene 1,2-Dimethyl-4-nitrobenzene~3,4-Dimethylnitrobenzene 4-Nitroxylene,99% 3,4-DIMETHYLNITROBENZENE(4-NITRO-2-XYLENE) 4-Nitro-o-xylol 4-Nitroxylene

Chemical Properties

Appearance	yellow crystalline solid
Melting point	29 °C
Boiling point	255 °C
density	1.139 g/mL at 25 °C(lit.)
vapor pressure	21.73Pa at 25℃
refractive index	1.555-1.557
Fp	>230 °F
storage temp.	Store below +30°C.
solubility	0.1g/l
form	Liquid
color	White or Colorless to Yellow
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents.
Water Solubility	100 mg/L (25 ºC)
BRN	2043245
Henry's Law Constant	3.9×10^-1 mol/(m³Pa) at 25℃, Zhang et al. (2010)
InChI	1S/C8H9NO2/c1-6-3-4-8(9(10)11)5-7(6)2/h3-5H,1-2H3
InChIKey	HFZKOYWDLDYELC-UHFFFAOYSA-N
SMILES	Cc1ccc(cc1C)[N+]([O-])=O
LogP	-0.154 at 32℃ and pH6.13
Dissociation constant	0 at 28℃
CAS DataBase Reference	99-51-4(CAS DataBase Reference)
NIST Chemistry Reference	Benzene, 1,2-dimethyl-4-nitro-(99-51-4)
EPA Substance Registry System	99-51-4(EPA Substance)

Safety Data

Hazard Codes	Xn,T
Risk Statements	R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . R36/37/38:Irritating to eyes, respiratory system and skin . R23/24/25:Toxic by inhalation, in contact with skin and if swallowed . less more
Safety Statements	S22:Do not breathe dust . S36/37:Wear suitable protective clothing and gloves . S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S13:Keep away from food, drink and animal feeding stuffs . less more
RIDADR	UN 3447 6.1/PG 2
WGK Germany	2
TSCA	Yes
REACH Registrations	Inactive
HazardClass	6.1
PackingGroup	II
HS Code	29042000
Storage Class	6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
Hazard Classifications	Acute Tox. 4 Oral
Hazardous Substances Data	99-51-4(Hazardous Substances Data)

99-51-4

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