2-Amino-6-chlorobenzoic acid

CAS Number: 2148-56-3

Chemical Formula: C7H6ClNO2

Synonyms: 6-AMINO-2-CHLOROBENZOC ACID, 6-Chloroanthranilic acid, 2-Carboxy-3-chloroaniline, 2-AMino-6-chlorobenzoic acid, 99% 1GR

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

Product Details

Step A: In a reaction vessel equipped with a stirrer, thermometer, reflux condenser and dropping funnel, add 0.16 mol of cerium chloride, 0.19 mol of 4‑hydroxy‑3‑methoxyphenmaleic-anhydride.html">material/ethanol.html">ethyl alcohol solution and 400–500 mL of potassium chloride solution. Maintain stirring speed at 160–190 rpm, heat the mixture to 60–65 °C, then slowly add 0.13 mol of 2‑chloro‑6‑nitrobenzoic acid solution and 200 mL of potassium bisulfite solution. Increase stirring speed to 260–310 rpm and reflux for 5–7 hours.

Step B: Cool the solution to 15–19 °C to precipitate solids. Filter the mixture, add 150–180 mL of diammonium hydrogen citrate solution to the filtrate, concentrate under reduced pressure and collect the precipitated solid. After drying, washing with brine and pyridine solution, and recrystallization in ethyl acetate, pure crystalline 2‑amino‑6‑chlorobenzoic acid (C7H6ClNO2) is obtained.

2-Amino-6-chlorobenzoic acid

2-Amino-6-chlorobenzoic acid Chemical Properties

ParameterValue
Melting point158-160 °C (lit.)
Boiling point250°C (rough estimate)
density1.3246 (rough estimate)
refractive index1.5560 (estimate)
storage temp.Keep in dark place,Inert atmosphere,Room temperature
pka0.97±0.10(Predicted)
formCrystalline Powder
colorLight yellow to beige
Water SolubilityVery soluble in water. Soluble in methanol .
BRN2804041
Major Applicationpeptide synthesis
InChIInChI=1S/C7H6ClNO2/c8-4-2-1-3-5(9)6(4)7(10)11/h1-3H,9H2,(H,10,11)
InChIKeySZCPTRGBOVXVCA-UHFFFAOYSA-N
SMILESC(O)(=O)C1=C(Cl)C=CC=C1N
CAS DataBase Reference2148-56-3(CAS DataBase Reference)
NIST Chemistry Reference2-Amino-6-chlorobenzoic acid(2148-56-3)

Safety Information

ItemValue
Hazard CodesXi
Risk Statements36/37/38
Safety Statements26-36-37/39
WGK Germany3
Hazard NoteIrritant
HS Code29224999
Storage Class11 - Combustible Solids
Hazard ClassificationsEye Irrit. 2; Skin Irrit. 2; STOT SE 3

Product Application Of 2-Amino-6-chlorobenzoic acid CAS#2148-56-3

Tricyclohexyltin 2‑amino‑6‑chlorobenzoate can be synthesized through the reaction between tricyclohexyltin hydroxide and 2‑amino‑6‑chlorobenzoic acid.

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