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Safety Information

40825

Sigma-Aldrich

3-Hydroxy-1,2,3-benzotriazin-4(3H)-one solution

~25% in DMF

Synonym(s):

3,4-Dihydro-3-hydroxy-4-oxo-1,2,3-benzotriazine, DHBT

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About This Item

Empirical Formula (Hill Notation):
C7H5N3O2
CAS Number:
28230-32-2
Molecular Weight:
163.13
MDL number:
MFCD00042803
UNSPSC Code:
12352005
PubChem Substance ID:
57650021

form

liquid

concentration

~25% in DMF

impurities

≤0.1% water

refractive index

n20/D 1.477

application(s)

peptide synthesis

storage temp.

2-8°C

SMILES string

ON1N=Nc2ccccc2C1=O

InChI

1S/C7H5N3O2/c11-7-5-3-1-2-4-6(5)8-9-10(7)12/h1-4,12H

InChI key

HJBLUNHMOKFZQX-UHFFFAOYSA-N

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General description

Solution may crystallize when stored over extended periods of time. Gently warm to ambient temperature and stir to bring product back into solution

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - Repr. 1B - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

136.4 °F - closed cup

Flash Point(C)

58 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
1451460V
1451460
1431721
1341488
1239388

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