Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: N,N-Dimethyl-1,4-phenylenediamine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: N,N-Dimethyl-1,4-phenylenediamine
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

99-98-9

99-98-9 structure

Name: N,N-Dimethyl-1,4-benzenediamine
Chemical Name: N,N-dimethyl-1,4-phenylenediamine
CAS Number: 99-98-9
Molecular Formula: C₈H₁₂N₂
Molecular Weight: 136.194
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyridine compound Pyridine derivative
Create Date: 2018-08-09 23:15:34
Modify Date: 2025-08-22 09:35:24

Name	N,N-dimethyl-1,4-phenylenediamine
Synonyms	N,N-DIMETHYL-P-PHENYLENEDIAMINE N,N-Dimethyl-1,4-benzenediamine EINECS 202-807-5 N,N-Dimethylbenzene-1,4-diamine 4-N,4-N-dimethylbenzene-1,4-diamine 1,4-Benzenediamine, N,N-dimethyl- N,N-Dimethyl-1,4-phenylenediamine MFCD00007860

Density	1.0±0.1 g/cm3
Boiling Point	262.0±0.0 °C at 760 mmHg
Melting Point	34-36 °C(lit.)
Molecular Formula	C₈H₁₂N₂
Molecular Weight	136.194
Flash Point	90.6±0.0 °C
Exact Mass	136.100052
PSA	29.26000
LogP	0.75
Vapour Pressure	0.0±0.5 mmHg at 25°C
Index of Refraction	1.607
Storage condition	2-8°C
Stability	Stable. Incompatible with acid chlorides, acid anhydrides, strong acids, strong oxidizing agents. Combustible.
Water Solubility	11 g/L (20 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ST0874000

CHEMICAL NAME :: p-Phenylenediamine, N,N-dimethyl-

CAS REGISTRY NUMBER :: 99-98-9

LAST UPDATED :: 199710

DATA ITEMS CITED :: 27

MOLECULAR FORMULA :: C8-H12-N2

MOLECULAR WEIGHT :: 136.22

WISWESSER LINE NOTATION :: ZR DN1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Human

DOSE/DURATION :: 14 ug/kg

TOXIC EFFECTS :: Blood - hemorrhage Skin and Appendages - primary irritation (after topical exposure) Skin and Appendages - dermatitis, allergic (after topical exposure)

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 50 mg/kg

TOXIC EFFECTS :: Behavioral - tremor Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 21 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - excitement

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 50 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Behavioral - coma

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 30 mg/kg

TOXIC EFFECTS :: Behavioral - tremor Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 25 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 84 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 10 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - excitement

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 51 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: 20 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Cardiac - pulse rate increase, without fall in BP Lungs, Thorax, or Respiration - respiratory stimulation

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 150 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Behavioral - coma

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 500 ppb

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - excitement Lungs, Thorax, or Respiration - dyspnea

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 60 mg/kg

TOXIC EFFECTS :: Behavioral - general anesthetic Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - cyanosis

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 100 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - excitement

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 60 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Behavioral - coma

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 240 ppb

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - excitement Lungs, Thorax, or Respiration - dyspnea

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 500 uL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 45 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - excitement

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 100 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Cardiac - pulse rate increase, without fall in BP Lungs, Thorax, or Respiration - respiratory stimulation

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 649 mg/kg/11D-C

TOXIC EFFECTS :: Liver - changes in liver weight Endocrine - other changes Nutritional and Gross Metabolic - weight loss or decreased weight gain

MUTATION DATA

TYPE OF TEST :: Cytogenetic analysis

TEST SYSTEM :: Rodent - hamster Lung

DOSE/DURATION :: 10 mg/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 241,175,1990 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X7141 No. of Facilities: 10 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 50 (estimated) No. of Female Employees: 50 (estimated)

Symbol	GHS06
Signal Word	Danger
Hazard Statements	H301 + H311 + H331
Precautionary Statements	P261-P280-P301 + P310-P311
Personal Protective Equipment	Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges
Hazard Codes	T:Toxic;
Risk Phrases	R23/24/25;R36/37/38
Safety Phrases	S28-S45-S36/37/39-S26
RIDADR	UN 2811 6.1/PG 2
WGK Germany	3
RTECS	ST0874000
Packaging Group	II
Hazard Class	6.1
HS Code	2818300000

Precursor 10
100-23-2 171364-78-6 586-77-6 138-89-6
50-00-0 100-01-6 18523-44-9 290365-83-2
547-58-0 60-11-7
DownStream 10
111955-89-6 149338-23-8 1456-89-9 92-99-9
19336-90-4 18523-44-9 2150-58-5 100-52-7
179176-43-3 18953-50-9

HS Code	2921590090
Summary	2921590090. other aromatic polyamines and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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