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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:
Molecular Weight:
113.07
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

form

solid

mp

132-136 °C

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

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

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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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