Fast Red B Base Purity 98.5% Industrial Grade Azoic Dyes

Fast Red B Base CAS 97-52-9 | Azoic Dyes

Fast Red B Base (CAS 97-52-9, EINECS 202-588-6, molecular formula C7H8N2O3, molecular weight 168.15) is a azoic dye product. Azoic diazo component (developer): couples after padding with Naphthol AS to give bright red to maroon shades in the dyeing and printing of cotton, linen and viscose cellulosic fabrics; also used for organic pigments and dye intermediates.

I. Basic Product Information

II. Technical Specifications & Supply Information

III. Applications

Azoic diazo component (developer): couples after padding with Naphthol AS to give bright red to maroon shades in the dyeing and printing of cotton, linen and viscose cellulosic fabrics; also used for organic pigments and dye intermediates.

IV. Quality & Supply Assurance

1. Stable batch-to-batch quality, with batch-by-batch inspection before shipment; a COA is provided with each delivery for full traceability;

2. Standard grades held in stock for fast delivery; bulk custom packing and long-term agreement supply supported;

3. Samples available on request, with third-party testing (e.g., SGS) to support incoming-material verification;

4. Our product line covers dye, pharmaceutical, agrochemical and organic pigment intermediates — a one-stop source for multi-category raw materials.

V. Frequently Asked Questions (FAQ)

Q: What are the CAS number and molecular formula of Fast Red B Base?

A: Fast Red B Base has CAS registry number 97-52-9, molecular formula C7H8N2O3, molecular weight 168.15 and EINECS number 202-588-6.

Q: What are the main uses and applications of Fast Red B Base?

A: Azoic diazo component (developer): couples after padding with Naphthol AS to give bright red to maroon shades in the dyeing and printing of cotton, linen and viscose cellulosic fabrics; also used for organic pigments and dye intermediates.

Q: What are the standard purity and grade of Fast Red B Base?

A: Standard supply purity Dry form ≥98.5% (HPLC, dry basis); moist form content agreed on wet basis (typically 50%–70%), grade Industrial Grade; custom assay and special specifications available on request — exact figures are per the batch COA.

Q: What are the packing specifications and minimum order quantity (MOQ) of Fast Red B Base?

A: Standard packing: Moist form: 50 kg plastic drum; dry form: 25 kg fiber drum (customizable on request). Samples available on request and custom packing supported; bulk orders can be delivered in batches per agreement.

Q: Can you provide COA, MSDS and other quality documents?

A: Azoic diazo component (developer): couples after padding with Naphthol AS to give bright red to maroon shades in the dyeing and printing of cotton, linen and viscose cellulosic fabrics; also used for organic pigments and dye intermediates.

Q: How should Fast Red B Base be stored and transported?

A: Azoic diazo component (developer): couples after padding with Naphthol AS to give bright red to maroon shades in the dyeing and printing of cotton, linen and viscose cellulosic fabrics; also used for organic pigments and dye intermediates.

VI. Keywords

Fast Red B Base, Fast Red B Base, 2-Methoxy-4-nitroaniline, C.I. Azoic Diazo Component 5, 97-52-9, Azoic Dyes