Indigo CAS 482-89-3

Product Name: Indigo

CAS: 482-89-3
MF: C16H10N2O2
MW: 262.26
EINECS: 207-586-9

Product Description

Product Name: Indigo

CAS: 482-89-3
MF: C16H10N2O2
MW: 262.26

EINECS: 207-586-9

Application

1. Used as a food coloring agent

2. Mainly used for dyeing cotton yarn, cotton fabric, wool or silk

Specifications :

Item	Grade	Test Result	Standard
Purity, % ≥	99.5	99.78	GB/T17529. 1-2008
Color, Hazen ≤	20	10	GB/T17530. 3-1998
Water Content % ≤	0.20	0.09	GB/T6283-1986
Inhibitor Content (MEHQ) (m/m), 10-6	200±20	188	GB/T17530.5-1998
Acrolein, %	0.001
Acetic Acid, %	0.054
Furfural, %	0.019
B, %	0.004
Propionic Acid, %	0.037
DAA, %	0.026
Appearance	Clear colorless liquid, Odour Pungent smell

公司信息

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.