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2-Chloro-5-nitrobenzoic acid

2-Chloro-5-nitrobenzoic acid

CAS: 2516-96-3

Molecular Formula: C7H4ClNO4

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2-Chloro-5-nitrobenzoic acid - Names and Identifiers

Name 2-Chloro-5-nitrobenzoic acid
Synonyms RARECHEM AL BO 0234
LABOTEST-BB LT00847209
2-chloro-5-nitrobenzoate
2-chloro-5-nitro-benzoicaci
2-CHLORO-5-NITROBENZOIC ACID
5-nitro-2-chlorobenzoic acid
6-Chloro-3-nitrobenzoic acid
5-NITRO-2-CHLOROBENZOIC ACID
2-Chloro-5-nitrobenzoic acid
2-chloro-5-nitro benzoic acid
2-Chloro-5-nirtrobenzoic acid
Benzoic acid, 2-chloro-5-nitro-
CAS 2516-96-3
EINECS 219-739-7
InChI InChI=1/C7H4ClNO4/c8-6-2-1-4(9(12)13)3-5(6)7(10)11/h1-3H,(H,10,11)/p-1
InChIKey QUEKGYQTRJVEQC-UHFFFAOYSA-N

2-Chloro-5-nitrobenzoic acid - Physico-chemical Properties

Molecular FormulaC7H4ClNO4
Molar Mass201.56
Density1.6
Melting Point165-168 °C (lit.)
Boling Point356.5±27.0 °C(Predicted)
Flash Point>100°C
Solubility 3.6g/l
Vapor Presure1.06E-05mmHg at 25°C
AppearanceCrystalline Powder
ColorLight yellow to beige-brown
BRN1877474
pKapK1: 2.17 (25°C)
Storage ConditionSealed in dry,Room Temperature
Refractive Index1.6000 (estimate)
Physical and Chemical PropertiesDensity 1.6
melting point 164-168°C
UseUsed as pesticide, pharmaceutical intermediates

2-Chloro-5-nitrobenzoic acid - Risk and Safety

Risk CodesR22 - Harmful if swallowed
R37/38 - Irritating to respiratory system and skin.
R41 - Risk of serious damage to eyes
R50 - Very Toxic to aquatic organisms
R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety DescriptionS26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S39 - Wear eye / face protection.
S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. 
S24/25 - Avoid contact with skin and eyes.
S36 - Wear suitable protective clothing.
UN IDsUN3077 9/PG 3
WGK Germany1
TSCAYes
HS Code29163900

2-Chloro-5-nitrobenzoic acid - Reference Information

NIST chemical information Information provided by: webbook.nist.gov (external link)
EPA chemical information Information provided by: ofmpub.epa.gov (external link)
Overview Scene and Overview [1] The method of preparing 2-chloro-5-nitrobenzoic acid in the prior art is the method of refining after nitration of o-chlorobenzoic acid, but because more 2-chloro-3-nitrobenzoic acid isomers are produced during nitration, it is difficult to achieve higher purity by conventional refining methods, generally, it can only be controlled at about 99.0%, which cannot meet the needs of use.
use used to synthesize 2-chloro-5-aminobenzoic acid, 5-nitrosalicylic acid and its esters, amide intermediates.
Used as intermediate of pesticide, medicine and organic pigment
Used as intermediate of pesticide and medicine
production method obtained by nitration of o-chlorobenzoic acid. Cool o-chlorobenzoic acid and sulfuric acid to below 0 ℃, then add mixed acid, nitrification at 0 ℃, after 8 hours of reaction, heat to 60 ℃, then pour into ice water to precipitate nitrobase, and recrystallize to obtain the finished product.
Last Update：2024-04-09 19:05:09
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