Acid Red 151

Acid Red 151

CAS Number
6406-56-0
Molecular Formula
C22H15N4NaO4S
Purity
98% purity

About Acid Red 151

Acid Red 151 (CAS 6406-56-0), an essential bisazo dye for the textile and leather industries, is currently seeing increased demand for high purity fine chemicals as US manufacturers shift toward sustainable, low-impact dyeing processes for wool, silk, and nylon. C.I. 26900 remains a critical component in specialty colo...

Acid Red 151 Specifications

CAS Number
6406-56-0
Molecular Formula
C22H15N4NaO4S
Molecular Weight
454.43 g/mol
IUPAC Name
sodium 4-[[4-[(2-hydroxynaphthalen-1-yl)diazenyl]phenyl]diazenyl]benzenesulfonate
Canonical SMILES
[Na+].[O-]S(=O)(=O)C1=CC=C(C=C1)/N=N/C1=CC=C(C=C1)/N=N/C1=C(O)C=CC2=CC=CC=C12
InChI Key
QERXHBDEEFLTOL-UHFFFAOYSA-M
Molecular Weight
454.43 g/mol
Purity
98% purity
Physical appearance
Dark red powder

Textile Dye

A versatile diazo acid dye primarily used for the dyeing and direct printing of protein fibers such as wool and silk, as well as synthetic polyamide fibers like nylon, providing bright shades with good leveling and fastness properties

Leather Colorant

An industrial-grade dye employed in the coloration of leather substrates to achieve a deep red finish

Paper Dye

A water-soluble colorant utilized in the paper industry for mass coloration or surface dyeing applications

Histochemical Stain

A specialized biological dye used in histological analysis and histochemistry for research purposes, specifically noted for its ability to be adsorbed by bentone clay.

Acid Red 151 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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