Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

162892

Sigma-Aldrich

Purpald®

≥99%

Synonym(s):

4-Amino-3-hydrazino-5-mercapto-1,2,4-triazole, 4-Amino-5-hydrazino-1,2,4-triazole-3-thiol

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

About This Item

Empirical Formula (Hill Notation):
C2H6N6S
CAS Number:
1750-12-5
Molecular Weight:
146.17
Beilstein:
134867
EC Number:
217-135-8
MDL number:
MFCD00003098
UNSPSC Code:
12352100
PubChem Substance ID:
24850011
NACRES:
NA.22

Quality Level

200

Assay

≥99%

form

powder

mp

228-230 °C (dec.) (lit.)

solubility

0.5 M NaOH: soluble 50 mg/mL, clear to slightly hazy (yellow to yellow brown or orange solution)

functional group

hydrazine

SMILES string

NNc1nnc(S)n1N

InChI

1S/C2H6N6S/c3-5-1-6-7-2(9)8(1)4/h3-4H2,(H,5,6)(H,7,9)

InChI key

RDIMQHBOTMWMJA-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Application

  • Purpald® was used in purpald assay for determination of bacterial polysaccharides containing substituted or unsubstituted glycol in residues such as glycerol, ribitol, arabinitol, furanosyl galactose and sialic acid.
  • It was used as chromogen during the determination of catalase activity in small tissue samples.
  • It was used as reagent in determination of formaldehyde.
  • It was used for derivatization of neutral monosaccharides during HPLC.

Legal Information

Purpald is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H228

Hazard Classifications

Flam. Sol. 1

Storage Class Code

4.1A - Other explosive hazardous materials

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
STBL2340
STBK7566
STBJ8487
STBF9243V
STBF0647V

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

J S Beckman et al.
Proceedings of the National Academy of Sciences of the United States of America, 87(4), 1620-1624 (1990-02-01)
Superoxide dismutase reduces injury in many disease processes, implicating superoxide anion radical (O2-.) as a toxic species in vivo. A critical target of superoxide may be nitric oxide (NO.) produced by endothelium, macrophages, neutrophils, and brain synaptosomes. Superoxide and NO.
Ashraf Gholizadeh
Physiology and molecular biology of plants : an international journal of functional plant biology, 26(4), 829-839 (2020-04-08)
DUF538 (domain of unknown function 538) proteins are known as a group of putative hypothetical proteins in a wide range of plant species. They have been identified from some plants challenged with various environmental stresses. However, a little is known
Journal of Liquid Chromatography, 16, 1105-1105 (1993)
Dawid Madej et al.
Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS), 64, 126689-126689 (2020-11-29)
The aim of this study was to investigate the effect of iron or/and zinc supplementation and termination of this treatment on the antioxidant defence of the male reproductive system and sperm viability in rats. The study consisted of 3 stages:
Mareike S Stephan et al.
Frontiers in microbiology, 11, 510638-510638 (2020-10-20)
Bacteriophages use a large number of different bacterial cell envelope structures as receptors for surface attachment. As a consequence, bacterial surfaces represent a major control point for the defense against phage attack. One strategy for phage population control is the
View All Related Papers

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