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1H-Benzotriazole structure
Chemical Name:
T706 ;U-6233;Cobratec;NSC-3058;BLS 1326;RusMin R;1h-benzo;Seetec BT;cobratec99;NCI-C03521
Molecular Formula:
Formula Weight:
MOL File:

1H-Benzotriazole Properties

Melting point:
97-99 °C(lit.)
Boiling point:
204 °C (15 mmHg)
1,36 g/cm3
vapor density 
4.1 (vs air)
vapor pressure 
0.04 mm Hg ( 20 °C)
refractive index 
1.5589 (estimate)
Flash point:
170 °C
storage temp. 
Store below +30°C.
Powder, Granules, Crystals, Needles or Flakes
1.6(at 20℃)
White to yellow-beige
6.0-7.0 (100g/l, H2O, 20℃)suspension
Slight characteristic odor
explosive limit
Water Solubility 
25 g/l in water (20 ºC)
Stable, but may be light sensitive. Incompatible with strong oxidizing agents, heavy metals.
CAS DataBase Reference
95-14-7(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances
EWG's Food Scores
NIST Chemistry Reference
EPA Substance Registry System
1,2,3-Benzotriazole (95-14-7)
  • Risk and Safety Statements
Signal word  Warning
Hazard statements  H315-H302-H332-H402-H302+H332-H319-H412
Precautionary statements  P273-P305+P351+P338-P280h-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P332+P313+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501
Hazard Codes  Xn,Xi,F
Risk Statements  20/22-36-52/53-5-36/37/38-20/21/22-11
Safety Statements  26-36/37-61-45-36/37/39-28A
RIDADR  2811
WGK Germany  1
RTECS  DM1225000
Autoignition Temperature 400 °C
Hazard Note  Harmful/Irritant
HS Code  29339990
Toxicity LD50 orally in Rabbit: 560 mg/kg LD50 dermal Rabbit > 2000 mg/kg

1H-Benzotriazole price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.22315 1H-Benzotriazole for synthesis 95-14-7 100 g $42.64 2021-03-22 Buy
Sigma-Aldrich B11400 Benzotriazole ReagentPlus , 99% 95-14-7 100g $45.2 2021-03-22 Buy
Sigma-Aldrich 76457 Benzotriazole analytical standard 95-14-7 50mg $79.2 2021-03-22 Buy
Sigma-Aldrich 8.22315 1H-Benzotriazole for synthesis 95-14-7 500 g $160.95 2021-03-22 Buy
Sigma-Aldrich 8.22315 1H-Benzotriazole for synthesis 95-14-7 1 kg $199.8 2021-03-22 Buy

1H-Benzotriazole Chemical Properties,Uses,Production

Chemical Properties

yellow to beige solid


Benzotriazole (BT) is an anticorrosive agent well known for its use in aircraft deicing and antifreeze fluids but also used in dishwasher detergents. in vivo.


anticorrosive agent in cooling fluids fuels, photographic development, antifreeze, dry cleaning, art restoration; tarnish remover and protective coatings in construction industry.
Benzotriazole is used as a component of aircraft de-icing fluid, pickling inhibitor in boiler scale removal, restrainer, developer and antifogging agent in photographic emulsions, corrosion inhibitor for copper, chemical intermediate for dyes, in pharmaceuticals, and as fungicide. (HSDB 1998).
Benzotriazole(BTA), ethylenediamine tetraaceticacid(EDTA), and potassium iodide(KI) were used for preparing the polishing slurries.


ChEBI: The simplest member of the class of benzotriazoles that consists of a benzene nucleus fused to a 1H-1,2,3-triazole ring.

Synthesis Reference(s)

The Journal of Organic Chemistry, 27, p. 185, 1962 DOI: 10.1021/jo01048a046

General Description

White to light tan crystals or white powder. No odor.

Air & Water Reactions

Dust may form an explosive mixture in air. Slightly soluble in water.

Reactivity Profile

The triazoles are a group of highly explosive materials that are sensitive to heat, friction, and impact. Sensitivity varies with the type substitution to the triazole ring. Metal chelated and halogen substitution of the triazol ring make for a particularly heat sensitive material. Azido and nitro derivatives have been employed as high explosives. No matter the derivative these materials should be treated as explosives.


Highly toxic by ingestion. May explode under vacuum distillation.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition 1H-Benzotriazole emits toxic fumes. 1H-Benzotriazole can react violently during vacuum distillation.

Fire Hazard

Flash point data are not available for 1H-Benzotriazole. 1H-Benzotriazole is probably combustible.

Safety Profile

Poison by intravenous route.Moderately toxic by ingestion and intraperitoneal routes.Questionable carcinogen with experimental tumorigenicdata. Mutation data reported. May detonate at 220°C or during vacuum distillation. When heated to decompositionit

Potential Exposure

Because benzotriazoles are used in large quantities as a corrosion inhibitor, it is mainly through this type of use that benzotriazoles become an environmental contaminant. As a corrosion inhibitor and fire retardant, they are used in antifreeze in concentrations of 0.01-2.0% and in airplane deicing/antiicing fluids in unknown concentrations, up to 10% (Cancilla et al.,1997). Used antifreeze may leak or be poured down drains and thence enters the environment. Also, an estimated 80% of aircraft deicing/anti-icing fluids are deposited on the ground due to spray drift, jet blast, and wind shear during taxiing and takeoff, according to a recent study (Hartwell et al., 1995).


Chronic (2-year) feeding studies were conducted. Rats were given 0, 6700, or 12,000 ppm in feed for 78 weeks and held for an additional 26 weeks. Mice were given 0, 11,700, or 23,500 ppm in feed in 104 weeks. The authors concluded that under the conditions shown in this study, there were no convincing evidence that 1-H-benzotriazole was carcinogenic in rats or mice.

Purification Methods

1,2,3-Benzotriazole crystallises from toluene, CHCl3, Me2NCHO or a saturated aqueous solution, and is dried at room temperature or in a vacuum oven at 65o. Losses are less if the material is distilled in a vacuum. CAUTION: may EXPLODE during distillation; necessary precautions must be taken. [Damschroder & Peterson Org Synth Coll Vol III 106 1955, Beilstein 26 III/IV 93.]

Toxicity evaluation

According to a 1977 EPA report, benzotriazole is considered to be of very low toxicity and a low health hazard to humans. In the same EPA report, two benzotriazole derivatives were reported to be mutagenic in bacterial systems. A year later, NIH published a report that there was no convincing evidence that the compound is carcinogenic (NIH, 1978). It is, however, more recently well established that 1-amino benzotriazole, with an amino group attached to one of the ring nitrogens, is a potent mechanism-based inhibitor of cytochrome P-450s via a benzyne intermediate (Ortiz de Montellano and Mathews, 1981), indicating that benzotriazoles as a class may interact with the P-450s. The P450s are important both for detoxifying a broad range of xenobiotics and for activating many compounds to carcinogens in mammalian systems.

1H-Benzotriazole Preparation Products And Raw materials

Raw materials

Preparation Products

1H-Benzotriazole Suppliers

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Related articles

View Lastest Price from 1H-Benzotriazole manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-12-03 Benzotriazole 98%
US $20.00 / Kg/Drum 25Kg/Drum 99.99% 1 ton per week Wuhan Mulei New Material Technology Co. Ltd
2021-12-03 1H-Benzotriazole
US $0.00 / Kg/Bag 1KG 99% 8000mt/year Jinan Finer Chemical Co., Ltd
2021-11-08 1H-Benzotriazole
US $10.00 / KG 1KG 99.9% 100MT/Month Wuhan wingroup Pharmaceutical Co., Ltd

1H-Benzotriazole Spectrum

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