Merck
All Photos(2)

Documents

143626

Sigma-Aldrich

m-Tolyl isocyanate

99%

Sign Into View Organizational & Contract Pricing

Synonym(s):
3-Methylphenyl isocyanate
Linear Formula:
CH3C6H4NCO
CAS Number:
Molecular Weight:
133.15
Beilstein:
386149
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

99%

form

liquid

refractive index

n20/D 1.5305 (lit.)

bp

75-76 °C/12 mmHg (lit.)

density

1.033 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

Cc1cccc(c1)N=C=O

InChI

1S/C8H7NO/c1-7-3-2-4-8(5-7)9-6-10/h2-5H,1H3

InChI key

CPPGZWWUPFWALU-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
189278220574217328
m-Tolyl isocyanate 99%

143626

m-Tolyl isocyanate

p-Toluenesulfonyl isocyanate 96%

189278

p-Toluenesulfonyl isocyanate

(R)-(+)-α-Methylbenzyl isocyanate 99%

220574

(R)-(+)-α-Methylbenzyl isocyanate

Trichloroacetyl isocyanate 96%

217328

Trichloroacetyl isocyanate

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

storage temp.

2-8°C

storage temp.

-

storage temp.

2-8°C

storage temp.

2-8°C

density

1.033 g/mL at 25 °C (lit.)

density

1.291 g/mL at 25 °C (lit.)

density

1.045 g/mL at 20 °C (lit.)

density

1.581 g/mL at 25 °C (lit.)

refractive index

n20/D 1.5305 (lit.)

refractive index

n20/D 1.534 (lit.)

refractive index

n20/D 1.513 (lit.)

refractive index

n20/D 1.480 (lit.)

bp

75-76 °C/12 mmHg (lit.)

bp

144 °C/10 mmHg (lit.), 275-278 °C (lit.)

bp

55-56 °C/2.5 mmHg (lit.)

bp

80-85 °C/20 mmHg (lit.)

General description

m-Tolyl isocyanate undergoes polymerization reaction to form the corresponding polymers by using lanthanum isopropoxide as initiator.

Application

m-Tolyl isocyanate was used as reagent during the synthesis of C5-cyclohexyl analog of the cholecystokinin type-B receptor antagonist L-365,260.

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Eye Dam. 1 - Resp. Sens. 1 - Skin Corr. 1C - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

Flash Point(F)

149.0 °F - closed cup

Flash Point(C)

65 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

L-708,474: The C5-cyclohexyl analogue of L-365,260, a selective high affinity ligand for the CCKB/gastrin receptor.
Chambers MS, et al.
Bioorganic & Medicinal Chemistry Letters, 3(10), 1919-1924 (1993)
Lanthanoid isopropoxide as a novel initiator for anionic polymerization of isocyanates.
Fukuwatari N, et al.
Macromolecular Rapid Communications, 17(1), 1-7 (1996)
Lili Zhang et al.
Journal of chromatography. A, 1623, 461174-461174 (2020-06-09)
A new class of chitosan derivatives with an isopropylthiourea at the 2-position and various carbamates at the 3,6-positions of the glucosamine skeleton was synthesized by the selective thiocarbamoylation of the 2-amino group. The chiral stationary phases (CSPs) were then prepared

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