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Trichloroacetonitrile

CAS No.
545-06-2
Chemical Name:
Trichloroacetonitrile
Synonyms
CCl3CN;2,2,2-Trichloroacetonitrile;Tritox;Trichloroaceto;Chlorocyanohydrin;TrichloroaceTitrile;Trichlroacetonitrile;TRICHLORACETONITRILE;Trichlouracetonitril;TRIBROMOACETONITRILE
CBNumber:
CB5853801
Molecular Formula:
C2Cl3N
Molecular Weight:
144.39
MDL Number:
MFCD00001842
MOL File:
545-06-2.mol
MSDS File:
SDS
Last updated:2026-04-10 10:27:20
Product description Number Pack Size Price
Trichloroacetonitrile 98% T53805 5g $71.5
Trichloroacetonitrile 98% T53805 100g $164
Trichloroacetonitrile for synthesis 8.08222 50mL $98.6
Trichloroacetonitrile for synthesis 8.08222 250ML $336
Trichloroacetonitrile >98.0%(GC) T0372 25g $21
More product size

Trichloroacetonitrile Properties

Melting point -42 °C
Boiling point 83-84 °C(lit.)
Density 1.44 g/mL at 25 °C(lit.)
vapor pressure 58 mm Hg ( 20 °C)
refractive index n20/D 1.441(lit.)
Flash point None
storage temp. Store below +30°C.
solubility <0.1 g/100 mL at 21.5°C
form Liquid
color Clear colorless to very slightly yellow
Odor odor of chloral and hydrogen cyanide
Water Solubility <0.1 g/100 mL at 21.5 ºC
Sensitive Lachrymatory
Merck 14,9628
BRN 605572
Henry's Law Constant 7.6×100 mol/(m3Pa) at 25℃, HSDB (2015)
Dielectric constant 4.6(60℃)
Exposure limits NIOSH: IDLH 25 mg/m3
Stability Stable, but water sensitive. Incompatible with acids, water, steam. May hydrolyze in alkali or acid conditions. Flammable.
InChI 1S/C2Cl3N/c3-2(4,5)1-6
InChIKey DRUIESSIVFYOMK-UHFFFAOYSA-N
SMILES ClC(Cl)(Cl)C#N
CAS DataBase Reference 545-06-2(CAS DataBase Reference)
EWG's Food Scores 1-2
FDA UNII 6397DL8869
IARC 3 (Vol. 52, 71) 1999
NIST Chemistry Reference Acetonitrile, trichloro-(545-06-2)
EPA Substance Registry System Trichloroacetonitrile (545-06-2)
UNSPSC Code 12352117
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS06,GHS09
Signal word  Danger
Hazard statements  H301+H311+H331-H411
Precautionary statements  P261-P273-P280-P301+P310-P302+P352+P312-P304+P340+P311
PPE Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Hazard Codes  T,N
Risk Statements  23/24/25-51/53
Safety Statements  45-61
RIDADR  UN 3276 6.1/PG 3
WGK Germany  3
RTECS  AM2450000
Hazard Note  Toxic/Lachrymatory
TSCA  TSCA listed
HazardClass  8
PackingGroup  II
HS Code  29269095
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
Hazard Classifications Acute Tox. 3 Dermal
Acute Tox. 3 Inhalation
Acute Tox. 3 Oral
Aquatic Chronic 2
Hazardous Substances Data 545-06-2(Hazardous Substances Data)
Toxicity LD50 orally in rats: 0.25 g/kg (Smyth)
Limited Quantities 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
NFPA 704
0
3 0

Trichloroacetonitrile price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich T53805 Trichloroacetonitrile 98% 545-06-2 5g $71.5 2026-03-19 Buy
Sigma-Aldrich T53805 Trichloroacetonitrile 98% 545-06-2 100g $164 2026-03-19 Buy
Sigma-Aldrich 8.08222 Trichloroacetonitrile for synthesis 545-06-2 50mL $98.6 2026-03-19 Buy
Sigma-Aldrich 8.08222 Trichloroacetonitrile for synthesis 545-06-2 250ML $336 2026-03-19 Buy
TCI Chemical T0372 Trichloroacetonitrile >98.0%(GC) 545-06-2 25g $21 2026-03-19 Buy
Product number Packaging Price Buy
T53805 5g $71.5 Buy
T53805 100g $164 Buy
8.08222 50mL $98.6 Buy
8.08222 250ML $336 Buy
T0372 25g $21 Buy

Trichloroacetonitrile Chemical Properties,Uses,Production

Chemical Properties

colourless to slightly yellow liquid

Uses

Trichloroacetonitrile is involved as a reagent in Overman rearrangement, which is used to prepare alylic amines from allylic alcohols. It is also used to prepare bistrichloroacetimidates from diols leading to dihyrooxazines through acid catalyzed cyclization. Further, it is utilized in the synthesis of trichloroacetimidates by 1,8-Diazobicyclo[5.4.0]undec-7-ene (DBU) catalyzed addition of allylic alcohols. It finds application in the study of the methoxy methyl (MOM) catalyzed aza-Claisen rearrangement.

Uses

Insecticide.

Definition

ChEBI: Trichloroacetonitrile is an aliphatic nitrile and an organochlorine compound.

Production Methods

Trichloroacetonitrile can be obtained by dehydration of trichloroacetamide with phosphorous pentoxide or by chlorination of acetonitrile with chlorine. Vapor phase chlorination in the presence of water and photochemical chlorination in the presence of catalysts such as HgCl2 or AlCl3 have been reported. Trichloroacetonitrile is an organic intermediate used, for example, in the synthesis of the fungicide etridiazole.

Reactions

Trichloroacetonitrile is an efficient dehydrating agent for a range of aldoximes, including aromatic and heterocyclic aldoxime, yielding the corresponding nitriles in moderate to good yields. The dehydration reactions can take place in non-acetonitrile media without the aid of a metal catalyst. In addition, it has been confirmed that trichloroacetonitrile was converted into trichloroacetamide in the reaction. Trichloroacetonitrile and triphenylphosphine convert carboxylic acids to acyl chlorides mildly and rapidly under acid-free conditions[1-2].

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

May be sensitive to light and heat. Trichloroacetonitrile may react with water, steam, acid or acid fumes. Trichloroacetonitrile may hydrolyze under acidic or alkaline conditions. . The reaction of benzene and Trichloroacetonitrile evolves toxic chloroform and HCl gasses. (Hagedorn, F., H.-P. Gelbke, and Federal Republic of Germany. 2002. Nitriles. In Ullman Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA.).

Hazard

Strong irritant to tissue. Questionable carcinogen.

Fire Hazard

Trichloroacetonitrile is combustible.

Safety Profile

Poison by ingestion and intravenous routes. Moderately toxic by inhalation and skin contact. Human mutation data reported. A skin and severe eye irritant. An experimental teratogen. Other experimental reproductive effects. When heated to decomposition or in reaction with water, steam, acid, or acid fumes it produces toxic fumes of CN-, Cl-, and NOx. Used as an insecticide. See also NITRILES and CYANIDE.

Toxicity evaluation

Trichloroacetonitrile (TCAN) is a by-product of the chlorine disinfection of water containing natural organic material. When administered by gavage to pregnant Long-Evans rats in a medium-chain triglyceride vehicle, tricaprylin oil (Tricap), at a volume of 10 ml/kg, TCAN induced fetal cardiovascular anomalies at doses as low as 1 mg/kg/d. Five groups of approximately 20 pregnant female rats received TCAN in CO at 15, 35, 55, and 75 mg/kg/d and in Tricap at 15 mg/kg/d (10 ml/kg closing volume). Corn oil, Tricap, and water served as vehicle controls. Animals were treated by oral intubation on gestation d 6-18 (vaginal plug -= d 0). Five out of 20 dams (75 mg/kg) died during treatment. Adjusted maternal weight gain was lower in females receiving 35 mg/kg TCAN or greater. The mean percent of nonlive implants per litter was elevated at 55 and 75 mg/kg TCAN (CO). The TCAN dose-response curve for fetal (but not maternal)effects was shifted to the right when CO was compared to Tricap. Fetal weight was reduced at 15 mg/kg TCAN (Tricap) and at 55 mg/kg TCAN (CO). When TCAN was administered in CO, the mean frequency of soft-tissue maliformations decreased with significantly fewer septal and great vessel cardiovascular defects observed. The lowest observed adverse effect level for TCAN (CO) was determined to be 35 kg/kg.

References

[1] István Vágó, István Greiner. “A useful acylation method using trichloroacetonitrile and triphenylphosphine for solid phase organic synthesis.” Tetrahedron Letters 43 34 (2002): Pages 6039-6041.
[2] Xiaoyun Ma, Zhengjian Chen, Dan Liu . “Dehydration of aldoximes to nitriles using trichloroacetonitrile without catalyst.” Synthetic Communications 51 21 (2021): Pages 3261-3266.

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View Lastest Price from Trichloroacetonitrile manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Trichloroacetonitrile pictures 2026-03-20 Trichloroacetonitrile
545-06-2
US $0.00 / KG 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
Trichloroacetonitrile pictures 2023-05-04 Trichloroacetonitrile
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US $48.00-40.00 / KG 1KG 99% 200tons Guangzhou Sunton Biotechnology Co., Ltd.
Trichloroacetonitrile pictures 2021-07-13 Trichloroacetonitrile
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US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
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