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700940

Sigma-Aldrich

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:
28466-26-4
Molecular Weight:
83.09
MDL number:
MFCD01693729
UNSPSC Code:
12352100
PubChem Substance ID:
329762246
NACRES:
NA.22

Assay

95%

form

powder

mp

77-82 °C

SMILES string

Nc1cn[nH]c1

InChI

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

InChI key

AXINVSXSGNSVLV-UHFFFAOYSA-N

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H315,H319,H335

Hazard Classifications

Acute Tox. 4 Oral - 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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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