3,4-dimethylphenyl isocyanate

Modify Date: 2025-08-25 19:39:54

3,4-dimethylphenyl isocyanate Structure
3,4-dimethylphenyl isocyanate structure
Common Name 3,4-dimethylphenyl isocyanate
CAS Number 51163-27-0 Molecular Weight 147.17400
Density 1.051 Boiling Point 85ºC2 mm Hg(lit.)
Molecular Formula C9H9NO Melting Point N/A
MSDS N/A Flash Point 198 °F

 Names

Name 3,4-dimethylphenyl isocyanate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.051
Boiling Point 85ºC2 mm Hg(lit.)
Molecular Formula C9H9NO
Molecular Weight 147.17400
Flash Point 198 °F
Exact Mass 147.06800
PSA 29.43000
LogP 2.27070
Index of Refraction n20/D 1.536(lit.)
InChIKey AYCDBMRVKSXYKW-UHFFFAOYSA-N
SMILES Cc1ccc(N=C=O)cc1C
Storage condition 2-8°C

 Safety Information

Hazard Codes Xn
Risk Phrases R23/25;R36/37/38;R42
Safety Phrases S23-S26-S36/37/39-S45
RIDADR UN 2206 6.1/PG 2
Packaging Group III
Hazard Class 6.1
HS Code 2929109000

 Customs

HS Code 2929109000
Summary 2929109000. other isocyanates. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Synonyms

4-isocyanato-1,2-dimethylbenzene
3,4-Dimethylphenyl isocyanate
MFCD00013867
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