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21050-95-3

21050-95-3 Structure

21050-95-3 Structure
IdentificationBack Directory
[Name]

1-CHLOROBENZOTRIAZOLE
[CAS]

21050-95-3
[Synonyms]

NSC 186037
1-CHLOROBENZOTRIAZOLE
N-Chlorobenzotriazole
1-chloro-1H-benzotriazole
1H-Benzotriazole, 1-chloro-
1-Chloro-1H-1,2,3-benzotriazole
1-chloro-1H-benzo[d][1,2,3]triazole
[EINECS(EC#)]

244-171-1
[Molecular Formula]

C6H4ClN3
[MDL Number]

MFCD00054541
[MOL File]

21050-95-3.mol
[Molecular Weight]

153.57
Chemical PropertiesBack Directory
[Melting point ]

104-106?C
[Boiling point ]

252.42°C (rough estimate)
[density ]

1.3647 (rough estimate)
[refractive index ]

1.6010 (estimate)
[storage temp. ]

-20°C Freezer, Under Inert Atmosphere
[solubility ]

Chloroform (Slightly), Ethyl Acetate (Slightly)
[form ]

Solid
[pka]

-0.96±0.30(Predicted)
[color ]

White to Off-White
[InChI]

InChI=1S/C6H4ClN3/c7-10-6-4-2-1-3-5(6)8-9-10/h1-4H
[InChIKey]

INOGLHRUEYDAHX-UHFFFAOYSA-N
[SMILES]

N1(Cl)C2=CC=CC=C2N=N1
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

22-36/37/38
[Safety Statements ]

26
[WGK Germany ]

3
[HS Code ]

29339900
[Storage Class]

11 - Combustible Solids
[Hazard Classifications]

Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
Hazard InformationBack Directory
[Chemical Properties]

White Solid
[Uses]

Oxidation
[Uses]

Oxidation and chlorination reagent.
[Application]

Used as positive halogen reagent for mild oxidations and selective chlorinations.
[Synthesis]

1-Chlorobenzotriazole is prepared by treat benzotriazole with sodium hypochlorite in 50% aq acetic acid. The reagent quickly precipitates and is obtained in nearly quantitative yield after recrystallization from CH2Cl2/petroleum ether.
[storage]

1-Chlorobenzotriazole may ignite spontaneously; reacts explosively with DMSO; light sensitive; stable to air and moisture in brown bottles; storage recommended at 0 °C; discard or repurify if discoloration occurs. This reagent should be handled in a fume hood.
Spectrum DetailBack Directory
[Spectrum Detail]

1-CHLOROBENZOTRIAZOLE(21050-95-3)1HNMR
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