Description

Chromate(3-), Bis[3-Hydroxy-4-[(2-Hydroxy- 1-Naphthalenyl)Azo]-7-Nitro-1-Naphthalenesulfonato (3-)]-, Sodium Dihydrogen is a complex, high-purity azo dye metal salt. This compound is valued for its strong chromophoric properties and ability to form stable complexes, making it a critical component in specialized colorant and analytical reagent formulations. It is primarily required by manufacturers in the pigments and dyes, analytical chemistry, and specialty chemical synthesis sectors. Consistent quality and reliable supply are paramount for its industrial applications.

Application

• Specialty Pigments and Dyes: Used as a key intermediate or colorant component for high-performance pigments, particularly where specific lightfastness or complexation properties are required.
• Analytical Reagents: Serves as a chromogenic agent or complexometric indicator in advanced analytical chemistry and titration methods.
• Research & Development: Employed in chemical research for synthesizing novel coordination compounds and studying azo dye-metal interactions.
• Photographic Chemicals: Potential application in specialized photographic sensitizers or light-absorbing layers due to its nitro and azo functional groups.
• Catalyst Synthesis: Can be used as a ligand precursor for the preparation of transition metal catalysts used in organic synthesis.

Basic Information

Item	Details
Product Name	Chromate(3-), Bis[3-Hydroxy-4-[(2-Hydroxy- 1-Naphthalenyl)Azo]-7-Nitro-1-Naphthalenesulfonato (3-)]-, Sodium Dihydrogen
CAS No.	127851-78-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Mordant Black 17 (sodium salt); Sodium 3-hydroxy-4-[(2-hydroxynaphthalen-1-yl)diazenyl]-7-nitronaphthalene-1-sulfonate chromium complex; Chromium complex of 3-Hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitro-1-naphthalenesulfonic acid; Acid Chrome Black; Mordant Black 17; Chromate(3-) bis(3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonato(3-)), dihydrogen sodium; Azo dye chromium complex salt.
EINECS	Contact for details

Quality Control

Our production of this specialty chemical adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Quality is verified through a suite of analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 2.0%
Heavy Metals (as Pb)	Max. 20 ppm
Chromium Content	To be specified on COA
Sulfated Ash	To be specified on COA

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.