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LC4643 Phenyl isocyanate
GR for analysis


Order number Packaging Quantity Price €
AC31643 Glass bottle 100 ml 34.43


Product information
Synonyms Isocyanic acid phenyl ester
Hill Formula C7H5NO
Chemical formula C6H5NCO
HS Code 2929 10 00
EC number 203-137-6
Molar mass 119.12 g/mol
CAS number 103-71-9


Chemical and physical data
Ignition temperature 645 °C
Solubility 0.617 g/l Hydrolysis
Melting point -33 °C
Molar mass 119.12 g/mol
Density 1.10 g/cm3 (20 °C)
Bulk density 1090 kg/m3
Boiling point 165 °C (1013 hPa)
Vapor pressure 2.5 hPa (20 °C)
Explosion limit 1.2 %(V)
Flash point 51 °C


Safety information according to GHS
Hazard Statement(s) H226: Flammable liquid and vapour.
H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
H317: May cause an allergic skin reaction.
H330: Fatal if inhaled.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Precautionary Statement(s) P210: Keep away from heat.
P260: Do not breathe vapour.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Danger
Hazard Pictogram(s)

Storage class 3 Flammable Liquids
WGK WGK 2 water endangering
Disposal 11
Organic acid halides, anhydrides and isocyanates can be added dropwise to an excess of methanol (Cat. No. 822283) to convert them into the corresponding methyl esters or methyl carbamates. If necessary, neutralize with sodium hydroxide solution (Cat. No. 105587). Fill into container A.


Safety information
R Phrase R 10-22-26-34-42/43
Flammable.Harmful if swallowed.Very toxic by inhalation.Causes burns.May cause sensitization by inhalation and skin contact
S Phrase S 23-26-36/37/39-45
Do not breathe vapour.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger flammable, very toxic, corrosive, sensitizing
Hazard Symbol

Very toxic


Transport information
Declaration (transport by sea) IMDG-Code UN 2487 PHENYL ISOCYANATE, 6.1 (3), I
Declaration (transport by air) IATA-DGR UN 2487 PHENYL ISOCYANATE, 6.1 (3), I


Toxicological data
LD 50 oral LD50 rat 800 mg/kg
LD 50 dermal LD50 rabbit 7130 mg/kg


Assay (GC, area%) ≥ 99 %
Fe (Iron) ≤ 0.0005 %
Heavy metals (as Pb) ≤ 0.001 %
Sulfated ash ≤ 0.05 %
Identity (IR) passes test