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Key Documents

Safety Information

8.03238

Sigma-Aldrich

1,2-Dichlorobenzene

for synthesis

Synonym(s):

1,2-Dichlorobenzene, o-Chlorobenzene

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About This Item

Linear Formula:
1,2-(Cl)2C6H4
CAS Number:
95-50-1
Molecular Weight:
147.00
MDL number:
MFCD00000535
UNSPSC Code:
12352101
EC Index Number:
202-425-9
NACRES:
NA.22

vapor pressure

1.33 hPa ( 20 °C)

Quality Level

200

Assay

≥98% (GC)

form

liquid

autoignition temp.

640 °C

potency

500 mg/kg LD50, oral (Rat)
>10000 mg/kg LD50, skin (Rabbit)

expl. lim.

2.2-12 % (v/v)

bp

180 °C/1013 hPa

mp

-17 °C

transition temp

flash point 66 °C

solubility

0.13 g/L

density

1.31 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C6H4Cl2/c7-5-3-1-2-4-6(5)8/h1-4H

InChI key

RFFLAFLAYFXFSW-UHFFFAOYSA-N

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Application

1,2-Dichlorobenzene for synthesis. CAS 95-50-1, chemical formula 1,2-(Cl)₂C₆H₄.

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.305 - 1.307
Identity (IR): passes test

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1B - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

Flash Point(F)

150.8 °F - closed cup

Flash Point(C)

66.0 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

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’.

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