C4H6O2
86.09 g/mol
Industrial ChemicalDanger
2-Butyne-1,4-diol
CAS110-65-6EC203-788-6
Category
Industrial Chemical
Compound Class
Alcohol
Primary Use
Flame retardant production intermediate
2-Butyne-1,4-diol is a chemical compound primarily used as an intermediate in the production of flame retardants. It also serves various industrial roles, including as a corrosion inhibitor, electroplating brightener, and stabilizer for chlorinated hydrocarbons.
Flame retardant production intermediateCorrosion inhibitorElectroplating brightener
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.
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Related Compounds
ReferenceSame Category
1,2-dimethoxyethane
CAS110-71-4
Specialty solvent and reagent
ReferenceSame Category
N-ethylethylenediamine
CAS110-72-5
chemical intermediate for synthesis
ReferenceSame Category
2-ethylaminoethanol
CAS110-73-6
intermediate for chemical synthesis
ReferenceSame Category
1-isocyanatopropane
CAS110-78-1
Chemical intermediate for synthesis
Safety Reference
Danger
H301Toxic if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H331Toxic if inhaled
H373May cause damage to organs through prolonged or repeated exposure
H311Toxic in contact with skin
H318Causes serious eye damage
H335May cause respiratory irritation
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 2-Butyne-1,4-diol (CAS 110-65-6) is 2905.39.
HS code (international, 6-digit)
2905.39
EU CN code (8-digit)
2905 39 95
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
but-2-yne-1,4-diol
InChIKey
DLDJFQGPPSQZKI-UHFFFAOYSA-N
SMILES
C(C#CCO)O
Synonyms (29)
- 1,2-Dimethoxyacetylene
- 1,4-BUTYNE GLYCOL
- 1,4-BUTYNEDIOL
- 1,4-Butinodiol
- 1,4-Butinodiol [Spanish]
- 1,4-Butynediol (VAN)
- 1,4-Dihydroxy-2-butyne
- 1,4-Dimethoxyacetylene
- 2-Butin-1,4-diol
- 2-Butin-1,4-diol [Czech]
- 2-Butyne-1,4-diol
- 2-Butynediol
- 2-butyn-1,4-diol
- 2-butyne-l,4-diol
- Agrisynth B3D
- Bis(hydroxymethyl)acetylene
- But-2-yne-1,4-diol
- Butynediol
- Butynediol-1,4
- Butynediol-1,4 [French]
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