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ChemicalBook >> CAS DataBase List >> Terephthaloyl chloride

Terephthaloyl chloride

Terephthaloyl chloride price.
  • $14 - $1285
  • Product name: Terephthaloyl chloride
  • CAS: 100-20-9
  • MF: C8H4Cl2O2
  • MW: 203.02
  • EINECS:202-829-5
  • MDL Number:MFCD00000693
  • Synonyms:p-Phenylenedicarbonyl dichloride;p-phenylenedicarbonyldichloride ;p-Phthaloyl dichloride;Terephthaoloyl Chloride ;TEREPHTHALOYL CHLORIDE, FLAKES, 99+%;1,4-Benzenecarbonyl chloride;Terephthaloyl chloride, 99+%;1,4-Dichloroformyl
22 prices
Selected condition:
Brand
  • 1Pluschem
  • Biosynth
  • Medical Isotopes, Inc.
  • Oakwood
  • Sigma-Aldrich
  • TCI Chemical
  • Thermo Scientific Chemicals
  • TRC
  • Usbiological
Package
  • 2.5g
  • 5g
  • 10g
  • 25g
  • 50g
  • 100g
  • 250g
  • 0.25kg
  • 0.5kg
  • 500g
  • 1000g
  • 1kg
  • 2kg
  • 5kg
  • Manufacturer1Pluschem
  • Product number1P0000MC
  • Product description1,4-Benzenedicarbonyl dichloride ≥99%
  • Packaging100g
  • Price$14
  • Updated2026-05-23
  • Buy
  • Manufacturer1Pluschem
  • Product number1P0000MC
  • Product description1,4-Benzenedicarbonyl dichloride >99.0%(GC)(T)
  • Packaging25g
  • Price$14
  • Updated2026-05-23
  • Buy
  • Manufacturer1Pluschem
  • Product number1P0000MC
  • Product description1,4-Benzenedicarbonyl dichloride ≥97%
  • Packaging500g
  • Price$33
  • Updated2026-05-23
  • Buy
  • ManufacturerBiosynth
  • Product numberFT05562
  • Product descriptionTerephthaloyl chloride
  • Packaging0.25kg
  • Price$900
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFT05562
  • Product descriptionTerephthaloyl chloride
  • Packaging0.5kg
  • Price$900
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFT05562
  • Product descriptionTerephthaloyl chloride
  • Packaging1kg
  • Price$900
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFT05562
  • Product descriptionTerephthaloyl chloride
  • Packaging2kg
  • Price$900
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFT05562
  • Product descriptionTerephthaloyl chloride
  • Packaging5kg
  • Price$1285
  • Updated2026-06-04
  • Buy
  • ManufacturerMedical Isotopes, Inc.
  • Product number53081
  • Product descriptionTerephthaloyl chloride
  • Packaging2.5g
  • Price$610
  • Updated2021-12-16
  • Buy
  • ManufacturerOakwood
  • Product number098836
  • Product descriptionTerephthaloyl chloride 99%
  • Packaging25g
  • Price$14
  • Updated2021-12-16
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number120871
  • Product descriptionTerephthaloyl chloride ≥99%, flakes
  • Packaging1kg
  • Price$152
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number120871
  • Product descriptionTerephthaloyl chloride ≥99%, flakes
  • Packaging5g
  • Price$40
  • Updated2026-04-30
  • Buy
  • ManufacturerSigma-Aldrich
  • Product number120871
  • Product descriptionTerephthaloyl chloride ≥99%, flakes
  • Packaging250g
  • Price$55
  • Updated2026-04-30
  • Buy
  • ManufacturerTCI Chemical
  • Product numberT0017
  • Product descriptionTerephthaloyl Chloride >99.0%(GC)(T)
  • Packaging500g
  • Price$57
  • Updated2026-04-30
  • Buy
  • ManufacturerTCI Chemical
  • Product numberT0017
  • Product descriptionTerephthaloyl Chloride >99.0%(GC)(T)
  • Packaging25g
  • Price$18
  • Updated2026-04-30
  • Buy
  • ManufacturerTCI Chemical
  • Product numberT0017
  • Product descriptionTerephthaloyl Chloride >99.0%(GC)(T)
  • Packaging100g
  • Price$23
  • Updated2026-04-30
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
1Pluschem 1P0000MC 1,4-Benzenedicarbonyl dichloride ≥99% 100g $14 2026-05-23 Buy
1Pluschem 1P0000MC 1,4-Benzenedicarbonyl dichloride >99.0%(GC)(T) 25g $14 2026-05-23 Buy
1Pluschem 1P0000MC 1,4-Benzenedicarbonyl dichloride ≥97% 500g $33 2026-05-23 Buy
Biosynth FT05562 Terephthaloyl chloride 0.25kg $900 2026-06-04 Buy
Biosynth FT05562 Terephthaloyl chloride 0.5kg $900 2026-06-04 Buy
Biosynth FT05562 Terephthaloyl chloride 1kg $900 2026-06-04 Buy
Biosynth FT05562 Terephthaloyl chloride 2kg $900 2026-06-04 Buy
Biosynth FT05562 Terephthaloyl chloride 5kg $1285 2026-06-04 Buy
Medical Isotopes, Inc. 53081 Terephthaloyl chloride 2.5g $610 2021-12-16 Buy
Oakwood 098836 Terephthaloyl chloride 99% 25g $14 2021-12-16 Buy
Sigma-Aldrich 120871 Terephthaloyl chloride ≥99%, flakes 1kg $152 2026-04-30 Buy
Sigma-Aldrich 120871 Terephthaloyl chloride ≥99%, flakes 5g $40 2026-04-30 Buy
Sigma-Aldrich 120871 Terephthaloyl chloride ≥99%, flakes 250g $55 2026-04-30 Buy
TCI Chemical T0017 Terephthaloyl Chloride >99.0%(GC)(T) 500g $57 2026-04-30 Buy
TCI Chemical T0017 Terephthaloyl Chloride >99.0%(GC)(T) 25g $18 2026-04-30 Buy
TCI Chemical T0017 Terephthaloyl Chloride >99.0%(GC)(T) 100g $23 2026-04-30 Buy

Properties

Melting point :79-81 °C(lit.)
Boiling point :266 °C(lit.)
Density :1,34 g/cm3
vapor density :7 (vs air)
vapor pressure :0.02 mm Hg ( 25 °C)
refractive index :1.5684 (estimate)
Flash point :356 °F
storage temp. :2-8°C
solubility :ethanol: 5%, clear
form :flakes
color :White to Almost white
PH :<0.5 (H2O)
explosive limit :1.5-8.9%(V)
Water Solubility :REACTS
Sensitive :Moisture Sensitive
BRN :607796
InChI :1S/C8H4Cl2O2/c9-7(11)5-1-2-6(4-3-5)8(10)12/h1-4H
InChIKey :LXEJRKJRKIFVNY-UHFFFAOYSA-N
SMILES :ClC(=O)c1ccc(cc1)C(Cl)=O
CAS DataBase Reference :100-20-9(CAS DataBase Reference)
NIST Chemistry Reference :1,4-Benzenedicarbonyl dichloride(100-20-9)
EPA Substance Registry System :1,4-Benzenedicarbonyl dichloride (100-20-9)

Safety Information

Symbol(GHS): Corrosion (GHS05)Skull and Crossbones (GHS06)Health Hazard (GHS08)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H290 May be corrosive to metals Corrosive to Metals Category 1 Warning P234, P390, P404
H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
H371 May cause damage to organs Specific target organ toxicity, single exposure Category 2 Warning P260, P264, P270, P309+P311, P405,P501
Precautionary statements:
P234 Keep only in original container.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P363 Wash contaminated clothing before reuse.
P390 Absorb spillage to prevent material damage.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P406 Store in corrosive resistant/… container with a resistant inner liner.
P501 Dispose of contents/container to..…

Description

Terephthaloyl chloride acts as a monomer with p-phenylenediamine used in the preparation of polymer viz. poly paraphenylene terephthalamide. It is an active component in performance polymers and aramid fibers, which gives flame resistance, chemical resistance, temperature stability, light weight, and very high strength. It is also used as an effective water scavenger, utilized to stabilize isocyanates and urethane prepolymers. Further, it is used in the preparation of liquid crystalline thermosets by thermal cyclotrimerization of dicyanate compounds of ring substituted bis(4-hydroxyphenyl) terepthalates. In addition to this, it is involved in the condensation reaction with difunctional alfa, μ-diaminopolystyrene to get chain-extended polystyrene containing amide bonds along the polymer backbone.

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