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Merck
CN

700940

4-Aminopyrazole

95%

Synonym(s):

1H-Pyrazol-4-ylamine, 1H-Pyrazole-4-amine, 4-Amino-1H-pyrazole

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About This Item

Empirical Formula (Hill Notation):
C3H5N3
CAS Number:
Molecular Weight:
83.09
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
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Product Name

4-Aminopyrazole, 95%

InChI

1S/C3H5N3/c4-3-1-5-6-2-3/h1-2H,4H2,(H,5,6)

SMILES string

Nc1cn[nH]c1

InChI key

AXINVSXSGNSVLV-UHFFFAOYSA-N

assay

95%

form

powder

mp

77-82 °C

Quality Level

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Regulatory Information

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Beat J Brüschweiler et al.
Regulatory toxicology and pharmacology : RTP, 88, 214-226 (2017-06-29)
Azo dyes represent the by far most important class of textile dyes. Their biotransformation by various skin bacteria may release aromatic amines (AAs) which might be dermally absorbed to a major extent. Certain AAs are well known to have genotoxic
Bradley O Elmore et al.
PloS one, 10(5), e0125027-e0125027 (2015-05-06)
Serum lipoproteins (LP) are increasingly being recognized as dual purpose molecules that contribute to both cholesterol homeostasis and host innate defense. In fact, very low LP levels are associated with increased risk of bacterial infection in critically ill patients. In

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