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N,N-Dimethyl-1,4-phenylenediamine

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Name

N,N-Dimethyl-1,4-phenylenediamine

EINECS 202-807-5
CAS No. 99-98-9 Density 1.049 g/cm
Solubility 11 g/L (20 °C ) in water Melting Point 34-36 °C(lit.)
Formula C8H12N2 Boiling Point 262 °C at 760 mmHg
Molecular Weight 136.20 Flash Point 88.6 °C
Transport Information UN 2811 6.1/PG 2 Appearance grey to black solid
Safety 28-45-36/37/39-26 Risk Codes 23/24/25-36/37/38
Molecular Structure Molecular Structure of 99-98-9 (1,4-Benzenediamine,N1,N1-dimethyl-) Hazard Symbols ToxicT
Synonyms

1,4-Benzenediamine,N,N-dimethyl- (9CI);p-Phenylenediamine, N,N-dimethyl- (8CI);1-Amino-4-(dimethylamino)benzene;4-(Dimethylamine)aniline;4-(Dimethylamino)aniline;4-(Dimethylamino)benzenamine;4-(N,N-Dimethylamino)aniline;4-(N,N-Dimethylamino)phenylamine;4-Amino-N,N-dimethylaniline;C.I. 76075;DMPD;Dimethyl-p-phenylenediamine;N,N-Dimethyl-1,4-benzenediamine;N,N-Dimethyl-1,4-diaminobenzene;N,N-Dimethyl-1,4-phenylenediamine;N,N-Dimethyl-p-benzenediamine;N,N-Dimethyl-p-phenylenediamine;N-(4-Aminophenyl)-N,N-dimethylamine;NSC 1493;[4-(Dimethylamino)phenyl]amine;p-(Dimethylamino)aniline;p-(Dimethylamino)phenylamine;p-Amino-N,N-dimethylaniline;p-Aminodimethylaniline;

 

N,N-Dimethyl-1,4-phenylenediamine Chemical Properties

IUPAC Name: 1-N,1-N-dimethylbenzene-1,4-diamine 
Empirical Formula: C8H12N2
Molecular Weight: 136.1943g/mol
EINECS: 202-807-5 
Structure of 1,4-Benzenediamine,N1,N1-dimethyl- (CAS NO.99-98-9):

Index of Refraction: 1.607
Molar Refractivity: 44.8 cm3
Molar Volume: 129.7 cm3
Polarizability: 17.76×10-24cm3
Surface Tension: 44.5 dyne/cm
Density: 1.049 g/cm3
Flash Point: 88.6 °C
Enthalpy of Vaporization: 49.98 kJ/mol 
Melting Point: 34-36 °C(lit.)
Boiling Point: 262 °C at 760 mmHg
Vapour Pressure: 0.0112 mmHg at 25°C 
Physical Appearance: grey to black solid
Product Categories: Amines 
Canonical SMILES: CN(C)C1=CC=C(C=C1)N
InChI: InChI=1S/C8H12N2/c1-10(2)8-5-3-7(9)4-6-8/h3-6H,9H2,1-2H3
InChIKey: BZORFPDSXLZWJF-UHFFFAOYSA-N

N,N-Dimethyl-1,4-phenylenediamine Uses

Used in the production of methylene blue and photographic developer. Used as a chemical intermediate for dyes and diazonium chloride salts and as an analytical reagent to detect chloroamine in water.

N,N-Dimethyl-1,4-phenylenediamine Production

N,N-Dimethyl-1,4-phenylenediamine neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides. Incompatible with strong oxidizers, strong acids and acid anhydrides. Also incompatible with alkalis .

N,N-Dimethyl-1,4-phenylenediamine Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LDLo oral 20mg/kg (20mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

CARDIAC: PULSE RATE INCREASE WITHOUT FALL IN BP

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION
Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
dog LDLo intraperitoneal 10mg/kg (10mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: EXCITEMENT
Journal of Pharmacology and Experimental Therapeutics. Vol. 95, Pg. 262, 1949.
dog LDLo intravenous 51mg/kg (51mg/kg)   Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
dog LDLo skin 84mg/kg (84mg/kg)   Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
guinea pig LCLo inhalation 240ppb (0.24ppm) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: DYSPNEA

BEHAVIORAL: EXCITEMENT
Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
guinea pig LD50 intraperitoneal 45mg/kg (45mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: EXCITEMENT
Journal of Pharmacology and Experimental Therapeutics. Vol. 95, Pg. 262, 1949.
guinea pig LD50 skin 500uL/kg (0.5mL/kg)   National Technical Information Service. Vol. OTS0555326,
guinea pig LDLo subcutaneous 100mg/kg (100mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

CARDIAC: PULSE RATE INCREASE WITHOUT FALL IN BP

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION
Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
human TDLo skin 14ug/kg (0.014mg/kg) BLOOD: HEMORRHAGE

SKIN AND APPENDAGES (SKIN): PRIMARY IRRITATION: AFTER TOPICAL EXPOSURE

SKIN AND APPENDAGES (SKIN): "DERMATITIS, ALLERGIC: AFTER TOPICAL EXPOSURE"
Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
mouse LD50 intraperitoneal 25mg/kg (25mg/kg)   Journal of Pharmacology and Experimental Therapeutics. Vol. 95, Pg. 262, 1949.
mouse LD50 oral 30mg/kg (30mg/kg) BEHAVIORAL: TREMOR

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
National Technical Information Service. Vol. OTS0555326,
rabbit LCLo inhalation 500ppb (0.5ppm) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: DYSPNEA

BEHAVIORAL: EXCITEMENT
Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
rabbit LD50 intraperitoneal 100mg/kg (100mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: EXCITEMENT
Journal of Pharmacology and Experimental Therapeutics. Vol. 95, Pg. 262, 1949.
rabbit LDLo oral 150mg/kg (150mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: COMA
Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
rabbit LDLo skin 60mg/kg (60mg/kg) BEHAVIORAL: GENERAL ANESTHETIC

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: CYANOSIS
Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
rabbit LDLo subcutaneous 60mg/kg (60mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: COMA

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.
rat LD50 intraperitoneal 21mg/kg (21mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: EXCITEMENT
Journal of Pharmacology and Experimental Therapeutics. Vol. 95, Pg. 262, 1949.
rat LD50 oral 50mg/kg (50mg/kg) BEHAVIORAL: TREMOR

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
National Technical Information Service. Vol. OTS0555326,
rat LDLo subcutaneous 50mg/kg (50mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: COMA
Journal of Industrial Hygiene. Vol. 4, Pg. 386, 1923.

N,N-Dimethyl-1,4-phenylenediamine Safety Profile

Hazard Codes: ToxicT
Risk Statements: 23/24/25-36/37/38 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 28-45-36/37/39-26 
S28:After contact with skin, wash immediately with plenty of soap-suds. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever 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.
RIDADR: UN 2811 6.1/PG 2
WGK Germany: 3
RTECS: ST0874000
F: 8-10-23
Hazard Note: Toxic/Keep Cold
HazardClass: 6.1
PackingGroup: II
Hazardous Substances Data: 99-98-9(Hazardous Substances Data)

N,N-Dimethyl-1,4-phenylenediamine Specification

  1,4-Benzenediamine,N1,N1-dimethyl- , its cas register number is 99-98-9. It also can be called 4-(Dimethylamino)aniline ; 
 4-(Dimethylamino)benzenamine ; 4-(Dimethylamino)phenylamine ; 4-Amino-N,N-dimethylaniline ; AI3-52360 ; C.I. 76075 ;
 CCRIS 6024 ; CI 76075 ; DMPD ; Dimethyl-p-phenylenediamine ; Dimethyl-para-phenylenediamine ; HSDB 5330 ; N,N'-Dimethyl-P-phenylenediamine  ; N,N-Dimethyl-p-benzenediamine ; N,N-Dimethyl-p-fenylendiamin ; N,N-Dimethyl-p-phenylenediamine ; NSC 1493 ; p-(Dimethylamino)aniline ; p-Amino-N,N-dimethylaniline ; p-Aminodimethylaniline ; p-Dimethylaminophenylamine ; p-Phenylenediamine, N,N-dimethyl- .

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