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658472

Sigma-Aldrich

1,2,4-Triazole-3-carboxylic acid

97%

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About This Item

Empirical Formula (Hill Notation):
C3H3N3O2
CAS Number:
4928-87-4
Molecular Weight:
113.07
MDL number:
MFCD00078268
UNSPSC Code:
12352100
PubChem Substance ID:
24884356
NACRES:
NA.22

Assay

97%

form

solid

mp

132-136 °C

functional group

carboxylic acid

SMILES string

OC(=O)c1nc[nH]n1

InChI

1S/C3H3N3O2/c7-3(8)2-4-1-5-6-2/h1H,(H,7,8)(H,4,5,6)

InChI key

LJVQHXICFCZRJN-UHFFFAOYSA-N

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
WXBF1808V
WXBD6757V
WXBD0909V
WXBC6767V
WXBC2800V

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Jia Zhang et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 24(56), 15013-15018 (2018-07-11)
We characterized the T2 -exchange (T2ex ) magnetic resonance imaging (MRI) contrast of azole protons that have large chemical shifts from the water proton resonance as a function of pH, temperature, and chemical modification. Our results showed that 1,2,4-triazoles could

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