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| CAS No.: | 99-52-5 |
|---|---|
| Name: | 2-Methyl-4-nitroaniline |
| Molecular Structure: | |
|
|
|
| Formula: | C7H8N2O2 |
| Molecular Weight: | 152.153 |
| Synonyms: | Spectrolene Red RL;Red Base Irga X;Fast Red Salt RL;Diazo Fast Red RL;4-Nitro-2-methylaniline;Devol Red RL;MNA (optical crystal);red color base RL;Naphtoelan Red RL Base;Aniline, 2-methyl-4-nitro-;Hiltonil Fast Red RL Base;Azogene Fast Red RL;Benzenamine,2-methyl-4-nitro-;Azoic diazo component 34, base;4-12-00-01809 (Beilstein Handbook Reference);2-Amino-5-nitrotoluene;C.I. 37100;Azogene Fast Red NRL Salt;Benzenamine, 2-methyl-4-nitro-;Ansibases Red RL;Fast Red RL Base;Sanyo Fast Red Salt RL;Kayaku Red RL Base;Fast Red Base RL;Meisi Fast Red RL Base;Mitsui Red RL Base;Devol Red Salt E;Azoene Fast Red GL Base;p-Nitro-o-toluidine;1-Amino-2-methyl-4-nitrobenzene;4-Nitro-o-toluidine;o-Toluidine, 4-nitro-;Fast Red 5NT;Kako Red RL Base;Red RL Base;Sanyo Fast Red RL Base;Meisei Fast Red RL Base;Red Base Ciba X;Naphthoelan Red RL Base;Hiltosal Fast Red RL Salt;Fast Red 5NT Salt;Yamada Fast Red RL Base;Daito Red Base RL;Scarlet Base G;2-Methyl-4-nitroaniline;2-Amino-5-nitrotoluene; |
| EINECS: | 202-762-1 |
| Density: | 1.269 g/cm3 |
| Melting Point: | 130-132 °C(lit.) |
| Boiling Point: | 341 °C at 760 mmHg |
| Flash Point: | 160.1 °C |
| Solubility: | water: <0.1 g/100 mL at 22 °C |
| Appearance: | Yellowneedle |
| Hazard Symbols: |
 T, N, Xi
|
| Risk Codes: | 23/24/25-33-51/53 |
| Safety: | 28-36/37-45-61-28A |
| Transport Information: | UN 2660 6.1/PG 3 |
| PSA: | 71.84000 |
| LogP: | 2.58980 |
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Chemistry
IUPAC Name: 2-Methyl-4-nitroaniline
Synonyms of 2-Methyl-4-nitroaniline (CAS NO.99-52-5): 1-Amino-2-methyl-4-nitrobenzene ; 2-Amino-5-nitrotoluene ; 4-12-00-01809 (Beilstein Handbook Reference) ; 4-Nitro-2-methylaniline ; 4-Nitro-6-methylaniline ; 4-Nitro-o-toluidine ; 5-Nitro-2-aminotoluene ; AI3-16312 ; Aniline, 2-methyl-4-nitro- ; Ansibases Red RL ; Azoene Fast Red GL Base ; Azogene Fast Red NRL Salt ; Azogene Fast Red RL ; BRN 0775772 ; Benzenamine, 2-methyl-4-nitro- ; C.I. 37100 ; CCRIS 2877 ; Daito Red Base RL ; Devol Red RL ; Devol Red Salt E ; Diabase Red RL ; Diazo Fast Red RL ; EINECS 202-762-1 ; Fast Red 5NT ; Fast Red 5NT Salt ; Fast Red Base RL ; Fast Red RL Base ; Fast Red Salt RL ; Hiltonil Fast Red RL Base ; Hiltosal Fast Red RL Salt ; Kako Red RL Base ; Kayaku Red RL Base ; Meisei Fast Red RL Base ; Meisi Fast Red RL Base ; Mitsui Red RL Base ; NSC 2075 ; Naphthoelan Red RL Base ; Naphtoelan Red RL Base ; Red Base Ciba X ; Red Base IRGA X ; Red Base NRL ; Red RL Base ; Sanyo Fast Red RL Base ; Sanyo Fast Red Salt RL ; Spectrolene Red RL ; Symulon Red RL Base ; Tulabase Fast Red RL ; Yamada Fast Red RL Base ; p-Nitro-o-toluidine ; o-Toluidine, 4-nitro-
CAS NO: 99-52-5
Classification Code: Mutation data
Molecular Formula: C7H8N2O2
Molecular Weight: 152.1506
Molecular Structure:
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Melting Point: 130-132 °C
Polar Surface Area: 49.06 Å2
Index of Refraction: 1.615
Molar Refractivity: 41.85 cm3
Molar Volume: 119.8 cm3
Surface Tension: 54.9 dyne/cm
Density: 1.269 g/cm3
Flash Point: 160.1 °C
Enthalpy of Vaporization: 58.47 kJ/mol
Boiling Point: 341 °C at 760 mmHg
Vapour Pressure: 8.26E-05 mmHg at 25°C
Uses
2-Methyl-4-nitroaniline (CAS NO.99-52-5) is mainly for cotton, linen fabric dyeing and printing color; it is also used for the production of paint.
Production
2-Methyl-4-nitroaniline (CAS NO.99-52-5) is synthesized from o-nitrotoluene and tolylsulfonyl chloride by condensation with nitration, hydrolyzation, neutralization and filtration drying.
Toxicity Data With Reference
| 1. | mmo-sat 2500 µg/plate | SAIGBL Sangyo Igaku. Japanese Journal of Industrial Health. 29 (1987),34. | ||
| 2. | mma-sat 1 mg/plate | 54DEAI Occupational Health in the Chemical Industry, Proceedings of the International Congress, 11th, Alberta, Canada, 1983 Oxford, R.R., et al., eds.,Calgary, Alberta, Canada.: Univ. of Calgary,1984,497. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Hazard Codes 2-Methyl-4-nitroaniline (CAS NO.99-52-5): 
T,
N,
Xi
Risk Statements: 23/24/25-33-51/53
R23/24/25: Toxic by inhalation, in contact with skin and if swallowed.
R33: Danger of cumulative effects.
R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 28-36/37-45-61
S28: After contact with skin, wash immediately with plenty of soap-suds.
S36/37: Wear suitable protective clothing and gloves.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 2660 6.1/PG 3
WGK Germany: 2
RTECS: XU8210000
Hazard Note: Irritant
HazardClass: 6.1
PackingGroup: III
HS Code: 29214300
Mutation data reported. When heated to decomposition it emits toxic vapors of NOx.
Specification
Storage: Store in a cool, dry, well-ventilated area away from incompatible substances. Store in a tightly closed container.