Skip to Content
MilliporeSigma
All Photos(2)

Key Documents

View All Documentation

8.21001

Sigma-Aldrich

Phenyl isocyanate

for synthesis

Synonym(s):

Phenyl isocyanate, Isocyanic acid phenyl ester, Isocyanatobenzene

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

CAS Number:
103-71-9
Molecular Weight:
119.12
MDL number:
MFCD00001994
UNSPSC Code:
12352118
EC Index Number:
203-137-6
NACRES:
NA.22

vapor pressure

2.5 hPa ( 20 °C)

Quality Level

200
300

form

liquid

autoignition temp.

645 °C

potency

800 mg/kg LD50, oral (Rat)
7130 mg/kg LD50, skin (Rabbit)

expl. lim.

1.2 % (v/v)

bp

165 °C/1013 hPa

mp

-33 °C

transition temp

flash point 51 °C

solubility

0.617 g/L (Hydrolysis)

density

1.10 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

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

InChI key

DGTNSSLYPYDJGL-UHFFFAOYSA-N

General description

for synthesis

Application

Phenyl isocyanate for synthesis. CAS 103-71-9, EC Number 203-137-6, chemical formula C₆H₅NCO.

Analysis Note

Assay (GC, area%)≥ 98.0 % (a/a)Density (d 20 °C/ 4 °C)1.093 - 1.095Identity (IR)passes test

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 4 Oral - Flam. Liq. 3 - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(C)

51 °C - closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service