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Benzothiazole

CAS No.
95-16-9
Chemical Name:
Benzothiazole
Synonyms
Benzo[d]thiazole;Benzothiazol;1,3-BENZOTHIAZOLE;Vangard BT;o-2857;NSC 8040;vangardbt;FEMA 3256;usafek-4812;USAF ek-4812
CBNumber:
CB1720657
Molecular Formula:
C7H5NS
Molecular Weight:
135.19
MDL Number:
MFCD00005775
MOL File:
95-16-9.mol
MSDS File:
SDS
Last updated:2024-04-17 18:50:11

Benzothiazole Properties

Melting point 2 °C (lit.)
Boiling point 231 °C (lit.)
Density 1.238 g/mL at 25 °C (lit.)
vapor density 4.66 (vs air)
vapor pressure 34 mm Hg ( 131 °C)
refractive index n20/D 1.642(lit.)
FEMA 3256 | BENZOTHIAZOLE
Flash point >230 °F
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility 3g/l
form Liquid
pka 0.85±0.10(Predicted)
color Clear yellow-brown to brown
Odor odor of quinoline, sltly water-sol
Odor Type sulfurous
explosive limit 0.9-8.2%(V)
Water Solubility slightly soluble
Merck 14,1107
JECFA Number 1040
BRN 109468
Stability Stable - regarded as highly persistent in the environment. Incompatible with strong oxidizing agents. Combustion products: nitrogen oxides, carbon monoxide, carbon dioxide, sulphur oxides.
InChIKey IOJUPLGTWVMSFF-UHFFFAOYSA-N
LogP 2.01
Substances Added to Food (formerly EAFUS) BENZOTHIAZOLE
CAS DataBase Reference 95-16-9(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII G5BW2593EP
NIST Chemistry Reference Benzothiazole(95-16-9)
EPA Substance Registry System Benzothiazole (95-16-9)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS06
Signal word  Danger
Hazard statements  H301+H311-H319
Precautionary statements  P264-P270-P280-P301+P310-P302+P352+P312-P305+P351+P338
Hazard Codes  Xn,T,Xi
Risk Statements  22-20/21/22-36-25-24-20
Safety Statements  23-26-36-36/37-45
RIDADR  2810
WGK Germany  2
RTECS  DL0875000
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29342080
Toxicity LD50 i.v. in mice: 95±3 mg/kg (Domino)
NFPA 704
1
2 0

Benzothiazole price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 101338 Benzothiazole 96% 95-16-9 5g $36.4 2024-03-01 Buy
Sigma-Aldrich 101338 Benzothiazole 96% 95-16-9 100g $62.4 2024-03-01 Buy
TCI Chemical B0092 Benzothiazole >96.0%(GC) 95-16-9 25mL $31 2024-03-01 Buy
TCI Chemical B0092 Benzothiazole >96.0%(GC) 95-16-9 100mL $73 2024-03-01 Buy
Alfa Aesar A10380 Benzothiazole, 97% 95-16-9 50g $25.3 2024-03-01 Buy
Product number Packaging Price Buy
101338 5g $36.4 Buy
101338 100g $62.4 Buy
B0092 25mL $31 Buy
B0092 100mL $73 Buy
A10380 50g $25.3 Buy

Benzothiazole Chemical Properties,Uses,Production

Description

Benzothiazole and its derivative are recognized as the most important heterocyclic compounds. This series of compounds is of particular interests. It has various kinds of pharmacological properties and has been included in many kinds of natural products and pharmaceutical agents. The broad spectrum of pharmacological activity in individual benzothiazole derivative enables it to serve as unique and valuable scaffolds for experimental drug design. It is already known that benzothiazole and its derivative has various biological applications including anticancer, antimicrobial, anticonvulsant, antiviral, antidiabetic, antipsychotic, antiinflammatory, analgesic, fungicidal and diuretic. Its derivatives also have many applications in polymer chemistry, dyes, drugs, and silver photography as well as rubber industry.

Chemical Properties

yellow liquid with an unpleasant odour

Chemical Properties

Benzothiazole has a delicate, persistent, rose-like odor similar to that of quinoline.

Occurrence

Reported found in apricot, cooked asparagus, mozzarella cheese, skim milk powder, roasted beef, beer, malt whiskey, coconut meat, fresh mango, cooked broccoli and kelp.

Uses

It is an interesting carbonyl equivalent and reacts with aldehydes or ketones to generate α-hydroxy carbonyl compounds. Benzothiazole is used as a chemical intermediate in organic synthesis. It is a precursor of rubber accelerators and a component of cyanine dyes. It is also used as a flavoring substance. It is also used as a flavor, antimicrobial agent, and component of cyanine dyes. Its derivatives are used as rubber accelerators.

Uses

Various benzothiazole-benzamides synthesized were evaluated for their analgesic and antidepressant activities.

Definition

ChEBI: An organic heterobicyclic compound that is a fusion product between benzene and thiazole. The parent of the class of benzothiazoles.

Preparation

By refluxing a mixture of zinc o-aminophenylsulfide and formic acid, followed by steam distillation of the alkalized reaction mixture; by heating formanilid or dimethylaniline with sulfur; by oxidation of 2-mercaptobenzothiazole or of the corresponding disulfide.

Aroma threshold values

Detection: 80 to 450 ppb

Taste threshold values

Taste characteristics at 3 ppm: meaty, vegetative, brown, cooked, beefy and coffee-like.

Synthesis Reference(s)

Journal of the American Chemical Society, 77, p. 6559, 1955 DOI: 10.1021/ja01629a041

General Description

Benzothiazole, a volatile sulfur-containing heterocyclic compound, is one of the key odorants of heated milk. It is also reported to occur as a flavor component of miso, coconut meat and cooked-beef.

Hazard

Highly toxic by ingestion.

Safety Profile

Poison by ingestion,intraperitoneal, intravenous, and possibly other routes.When heated to decomposition it emits very toxic fumesof SOx, CN??, and NOx.

References

Gupta, Akhilesh, and S. Rawat. "Synthesis and cyclization of benzothiazole." J. of Current Pharmaceutical Research 3.1 (2010): 13-25.
Keri, Rangappa S., et al. "A comprehensive review in current developments of benzothiazole-based molecules in medicinal chemistry." European journal of medicinal chemistry 89 (2015): 207-251.
Khokra, Sukhbir L., et al. "Common methods to synthesize benzothiazole derivatives and their medicinal significance: a review." International Journal of Pharmaceutical Sciences and Research 2.6 (2011): 1356.

103-72-0
95-16-9
Synthesis of Benzothiazole from Phenyl isothiocyanate
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View Lastest Price from Benzothiazole manufacturers

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Benzothiazole pictures 2024-04-26 Benzothiazole
95-16-9
US $0.00 / Kg/Drum 1KG 99% 2000mt/year Jinan Finer Chemical Co., Ltd
Benzothiazole pictures 2024-04-18 Benzothiazole
95-16-9
US $6.00 / KG 1KG 99% 2000KG/MONTH Hebei Saisier Technology Co., LTD
Benzothiazole  pictures 2024-04-07 Benzothiazole
95-16-9
US $0.00-0.00 / Kg 1Kg 99.9% 200tons airuikechemical co., ltd.
  • Benzothiazole pictures
  • Benzothiazole
    95-16-9
  • US $0.00 / Kg/Drum
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  • Jinan Finer Chemical Co., Ltd
  • Benzothiazole pictures
  • Benzothiazole
    95-16-9
  • US $6.00 / KG
  • 99%
  • Hebei Saisier Technology Co., LTD
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