C13H14N2
198.26 g/mol
Industrial ChemicalDanger
4,4'-Methylenedianiline
CAS101-77-9EC202-974-4
Category
Industrial Chemical
Compound Class
Amine
Primary Use
precursor to polyurethanes
4,4'-Methylenedianiline (MDA) is an industrial organic compound. It is primarily produced as a precursor in the manufacturing of polyurethanes.
precursor to polyurethanes
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
CAS 101-77-9
Related Compounds
ReferenceSame Category
Diaminodiphenyl ether
CAS101-80-4
Chemical intermediate for polyimide resins
ReferenceSame Category
Diphenylmethane
CAS101-81-5
Organic synthesis intermediate for fragrances and dyes
ReferenceSame Category
Dicyclohexylamine
CAS101-83-7
chemical intermediate for sulfenamides and corrosion inhibitors
ReferenceSame Category
N,N'-di-sec-butyl-p-phenylenediamine
CAS101-96-2
Antioxidant and stabilizer for gasoline
Safety Reference
Danger
H317May cause an allergic skin reaction
H341Suspected of causing genetic defects
H350May cause cancer
H370Causes damage to organs
H373May cause damage to organs through prolonged or repeated exposure
H411Toxic to aquatic life with long lasting effects
H301Toxic if swallowed
H400Very toxic to aquatic life
H302Harmful if swallowed
H311Toxic in contact with skin
H319Causes serious eye irritation
H372Causes damage to organs through prolonged or repeated exposure
H410Very toxic to aquatic life with long lasting effects
H316Causes mild skin irritation
H351Suspected of causing cancer
H361Suspected of damaging fertility or the unborn child
Customs Tariff Classification
The international HS code for 4,4'-Methylenedianiline (CAS 101-77-9) is 2921.59.
HS code (international, 6-digit)
2921.59
EU CN code (8-digit)
2921 59 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
4-[(4-aminophenyl)methyl]aniline
InChIKey
YBRVSVVVWCFQMG-UHFFFAOYSA-N
SMILES
C1=CC(=CC=C1CC2=CC=C(C=C2)N)N
Synonyms (62)
- A1IHK
- 4,4'-DIAMINODIPHENYLMETHANE
- 4,4'-Diaminobiphenyl methane
- 4,4'-Diaminodiphenylmethan
- 4,4'-Dimethylenediamine
- 4,4'-Diphenylmethanediamine
- 4,4'-MDA
- 4,4'-Methylenebisaniline
- 4,4'-Methylenebisbenzenamine
- 4,4'-Methylenedianiline
- 4,4'-Methylenedianiline--d8
- 4,4'-Methylenedibenzenamine
- 4,4'-methanediyldianiline
- 4-(4-Aminobenzyl)aniline
- 4-(4-Aminobenzyl)phenylamine
- Ancamine TL
- Aniline, 4,4'-methylenedi-
- Aniline,4'-methylenedi-
- Araldite hardener 972
- Avaldite HT 972
- Benzenamine,4'-methylenebis-
- Bis(4-aminophenyl)methane
- Bis(aminophenyl)methane
- Bis(p-aminophenyl)methane
- Bis-p-aminofenylmethan
- Curithane
- Dadpm
- Di(4-aminophenyl)methane
- Di(para-aminophenyl)methane
- Diaminodiphenylmethane
- Dianiline, 4,4'-methylene-
- Dianilinemethane
- Dianilinomethane
- Jeffamine AP-20
- Methylenebis(aniline)
- Methylenedianiline
- Methylenedianiline (VAN)
- Sumicure M
- Tonox
- di-(p-aminophenyl)methane
- methylenebis(4-aminobenzene)
- p,p'-Diaminodifenylmethan
- p,p'-Diaminodiphenylmethane
- p,p'-Methylenedianiline