Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

777846

Sigma-Aldrich

3-Hydroxy-1-methyl-1H-pyrazole

96%

Synonym(s):

1-Methyl-1,2-dihydro-3H-pyrazol-3-one, 1-Methyl-3-pyrazolone, 3-Hydroxy-1-methylpyrazole

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C4H6N2O
CAS Number:
52867-35-3
Molecular Weight:
98.10
MDL number:
MFCD21604051
UNSPSC Code:
12352100
PubChem Substance ID:
329767933
NACRES:
NA.22

Quality Level

100

Assay

96%

form

solid

mp

124-128 °C

SMILES string

CN1C=CC(O)=N1

InChI

1S/C4H6N2O/c1-6-3-2-4(7)5-6/h2-3H,1H3,(H,5,7)

InChI key

WIISOYLZJJYTHT-UHFFFAOYSA-N

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H315,H318,H335

Hazard Classifications

Eye Dam. 1 - 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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKBQ6780V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service