Eriochrome Black A CAS 3618-58-4 | High-Purity Supplier & Bulk Manufacturer
| Product Name | Eriochrome Black A |
|---|---|
| Synonyms | Acid Chrome Black N, Acid Chrome Black S, Acid mordant Black 1, Acid mordant Black 1 (technical) |
| CAS Number | 3618-58-4 |
| Catalog No. | FT-0625692 |
| Molecular Formula | C20H12N3NaO7S |
| Molecular Weight | 461.4000 |
| IUPAC Name | sodium;3-hydroxy-4-[(2-hydroxynaphthalen-1-yl)diazenyl]-7-nitronaphthalene-1-sulfonate |
| InChI Key | DXRWYIKGBIPGAG-UHFFFAOYSA-M |
| Category | Chemical Reagents |
| Supply Scale | gram – kilogram – bulk |
| Documentation | COA, SDS, HPLC, NMR, MS (on request) |
| Custom Synthesis | Available |
| Shipping | Worldwide |

Request Eriochrome Black A (CAS 3618-58-4)
Pricing on request · Quotation within 24 hours
- High-purity grades, COA & SDS included
- Gram to kilogram & bulk quantities
- Custom synthesis & scale-up
- Worldwide compliant shipping
Eriochrome Black A Overview
Eriochrome Black A (CAS 3618-58-4) is a high-purity fine chemical and pharmaceutical intermediate supplied by Finetech Industry Limited for scientific research and product development. It has the molecular formula C20H12N3NaO7S and a molecular weight of 461.4000. It is offered as a well-defined building block and reference compound for laboratory research and analytical applications.
Finetech Industry Limited manufactures and supplies Eriochrome Black A in high-purity grades, supporting pharmaceutical companies, contract research organizations, academic laboratories and industrial customers. Supply capacities range from gram quantities to kilogram and bulk production, with custom synthesis available for non-catalog analogs and scale-up. The exact purity and specification are stated on the Certificate of Analysis for each batch.
Applications of Eriochrome Black A
Laboratory research
Used as a well-characterized laboratory reagent in research studies and product development, where batch-to-batch consistency matters.
Analytical reference
Suitable as an analytical reference material for method development, calibration and quality control.
Building block
Serves as a building block and intermediate in synthetic and analytical work, with custom quantities available on request.
Supplied as a general research reagent and intermediate for scientific research, analytical, industrial and commercial product-development applications, according to the product grade and the customer's intended use. Please confirm the applicable specification and intended-use requirements when requesting a quote.
Bulk Supply & Packaging
Finetech Industry Limited supplies Eriochrome Black A for research and larger-scale requirements with flexible packaging and scalable manufacturing.
Each shipment includes a COA, SDS, batch traceability and secure protective packaging. Customized packaging and labeling are available on request.
Supply Capabilities
Scale
- Gram scale
- Kilogram scale
- Multi-kg / bulk
- Custom / MT on request
Documentation
- COA
- SDS
- HPLC / GC
- NMR / MS
Manufacturing
- Custom synthesis
- Process development
- Scale-up
- Pilot production
Shipping
- North America
- Europe
- Asia / Middle East
- Oceania
Eriochrome Black A FAQ
What is the CAS number of Eriochrome Black A?
The CAS number of Eriochrome Black A is 3618-58-4. Its molecular formula is C20H12N3NaO7S and molecular weight is 461.4000.
What purity of Eriochrome Black A does Finetech Industry Limited supply?
Finetech Industry Limited supplies Eriochrome Black A in high-purity grades. The exact purity is stated on the Certificate of Analysis for each batch and can be confirmed before ordering.
Can Finetech Industry Limited supply Eriochrome Black A in bulk?
Yes. Finetech Industry Limited supplies Eriochrome Black A from gram quantities to kilogram and bulk scale, and offers custom synthesis and scale-up.
Do you provide COA and SDS for Eriochrome Black A?
Yes. Every shipment includes a COA and SDS, with HPLC, NMR and MS data available on request.