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Phenyl isocyanate

Name: Phenyl isocyanate
Brand: SIAL
Price: 243 USD
Availability: InStock

derivatization grade (HPLC), LiChropur^™, ≥99.0% (GC)

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Size/SKU	Availability	Price
100 mL	Estimated to ship onNovember 12, 2026fromMILWAUKEE	$243.00

About This Item

Linear Formula:

C₆H₅NCO

CAS Number:

103-71-9

Molecular Weight:

119.12

UNSPSC Code:

41115716

NACRES:

NA.22

PubChem Substance ID:

329768177

EC Number:

203-137-6

Beilstein/REAXYS Number:

471391

MDL number:

MFCD00001994

Assay:

≥99.0% (GC)

Form:

liquid

$243.00

Estimated to ship onNovember 12, 2026Details

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Properties

grade

derivatization grade (HPLC)

Quality Segment

100

vapor pressure

1.4 mmHg ( 20 °C)

assay

≥99.0% (GC)

form

liquid

quality

LiChropur^™

technique(s)

HPLC: suitable

refractive index

n20/D 1.535 (lit.), n20/D 1.536

bp

162-163 °C (lit.)

mp

−30 °C (lit.)

density

1.096 g/mL at 25 °C (lit.)

SMILES string

O=C=Nc1ccccc1

InChI

1S/C7H5NO/c9-6-8-7-4-2-1-3-5-7/h1-5H

InChI key

DGTNSSLYPYDJGL-UHFFFAOYSA-N

Description

General description

Phenyl isocyanate is an aromatic monoisocyanate which is a constituent of diphenyl methane diisocyanate. It is suitable to make aryl ureas with amine at room temperature making it unlikely to detect isocyanate formation using NMR. It reacts with amino acids in alkaline solution and with peptone.

Application

Phenyl isocyanate was used in preparing grapheme-polymer nanocomposites by mixing exfoliated phenyl isocyanate-treated graphite oxide sheets with polystyrene. It was used in studying its reaction of o-hydroxybenzyl alcohol in polar solvents with in situ FT-IR which showed that phenolic hydroxyl group reacts easily than aliphatic hydroxyl group.

Other Notes

Reagent for the determination of alcohols and amines

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

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Show Differences

1 of 1

This Item	821001	185353	389951
Supelco 78750 Phenyl isocyanate	Sigma-Aldrich 821001 Phenyl isocyanate	Sigma-Aldrich 185353 Phenyl isocyanate	Sigma-Aldrich 389951 Pentyl isocyanate
description derivatization grade (HPLC), LiChropur^™, ≥99.0% (GC)	description for synthesis	description ≥98%	description 98%
assay ≥99.0% (GC)	assay -	assay ≥98%	assay 98%
Quality Level 100	Quality Level 200, 300	Quality Level 100	Quality Level 100
refractive index n20/D 1.535 (lit.), n20/D 1.536	refractive index -	refractive index n20/D 1.535 (lit.)	refractive index n20/D 1.414 (lit.)
mp −30 °C (lit.)	mp -33 °C	mp −30 °C (lit.)	mp -
density 1.096 g/mL at 25 °C (lit.)	density 1.10 g/cm³ at 20 °C	density 1.096 g/mL at 25 °C (lit.)	density 0.878 g/mL at 25 °C (lit.)
form liquid	form liquid	form liquid	form liquid

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pictograms

GHS02,GHS06,GHS08,GHS05,GHS09

signalword

Danger

hcodes

H226,H302,H314,H317,H330,H334,H335,H410

pcodes

P210 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Flam. Liq. 3 - Resp. Sens. 1 - Skin Corr. 1C - Skin Sens. 1A - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

flash_point_f

123.8 °F - closed cup

flash_point_c

51 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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