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Acid Yellow 49

Acid Yellow 49

CAS Number: 12239-15-5

Molecular Formula: C16H13Cl2N5O3S

About Acid Yellow 49

Acid Yellow 49 (CAS 12239-15-5) remains a cornerstone in the high-performance textile sector for dyeing protein fibers like wool and silk, where specialized bulk chemical supplier networks in the United States are increasingly prioritizing batch-to-batch consistency to meet rigorous domestic colorfastness standards. C....

Acid Yellow 49 Specifications

CAS Number
12239-15-5
Molecular Formula
C16H13Cl2N5O3S
Molecular Weight
426.28 g/mol
IUPAC Name
4-[(5-amino-3-methyl-1-phenylpyrazol-4-yl)diazenyl]-2,5-dichlorobenzenesulfonic acid
Canonical SMILES
C1(S(O)(=O)=O)=CC(Cl)=C(N=NC2=C(N)N(C3=CC=CC=C3)N=C2C)C=C1Cl
InChI Key
QHVBDWZOQBMLLW-UHFFFAOYSA-N
Molecular Weight
426.28 g/mol

Textile Dye

A brilliant yellow azo dye widely utilized for dyeing wool, silk, nylon, and polyamide fibers, known for providing high levelness and vibrant coloration

Paper Colorant

A specialized dye used in the paper industry to enhance the visual appeal of specialty paper products through strong acid resistance and uniform distribution

Leather Dye

A functional coloring agent employed in the leather industry for imparting bright yellow hues to various leather goods

Scientific Research Reagent

A biochemical tool used in laboratory studies to investigate physiological effects, such as oxidative stress and the impact of environmental contaminants on cells

Thermoset and Thermoplastic Additive

A versatile colorant used in the manufacturing of plastic materials to provide consistent and durable yellow shading.

Acid Yellow 49 FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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