Can this product be used for food coloring?

Yes, derivatives like indigo white and bromized indigo blue are used in food coloring matter and biochemistry.

2025 Popular Vat Dye Indigo Blue 94% for Denim Dyeing

Name: 2025 Popular Vat Dye Indigo Blue 94% for Denim Dyeing
Brand: Zhengzhou Kelai Chemical Co., Ltd.
SKU: 763613462

Henan, ChinaZhengzhou Kelai Chemical Co., Ltd.

US$6,500.00

1-9 Tons

US$6,450.00

10-49 Tons

US$5,600.00

50+ Tons

Product specifications

Indigo Blue94%

Sample price:US$0.00/500g.Request sample

Product profile

Customization

Available

CAS No.

482-89-3

Formula

C16h10n2o2

Model NO.

Indigo Blue 94%

EINECS

207-586-9

Colour

Black

Appearance

Granule

Usage

Leather, Textile

Application Material

Leather

Name

Vat Blue BC

Content

100%

C.I.No.

Vat Blue 4

Product Name

Indigo Blue

Other Name

Vat Blue 1

Formula Weight

262.26

Grade

Tech Grade

Shelf Life

One Year

Colour Index

C.I. Vat Blue 1

Vat Yellow

1, 2, 33

Vat Orange

1, 2, 7, 9, 11, 15

Another Name

Reducing Indigo

Index No. of Dye

C. I. Reducing Blue 1 (73000)

Molecular Formula

C16h10n2o2

Chemical Name

3, 3 - Dioxbisindophenol

Moisture Content

1.0% Max

pH Range

9.5-10.0

Content of Ferric Ions

200ppm Max

Transport Package

25kg Net Bag

Specification

indigo Blue 94%

Trademark

kelai

Origin

China

HS Code

32041510

Production Capacity

15000 Ton/Year

Key features

Versatile Vat Dyes: Includes Vat Yellow, Orange, Red, Violet, Blue, Green, Brown, and Black series.

Excellent Sun Endurance: Features very good sunburn endurance and superior application performance.

Cotton Fiber Dyeing: Mainly used for dyeing cotton fibers, including 'cowboy' clothes production.

Customizable Packaging: Available in 25kg bags with inner foil and outer kraft paper or client requirements.

Wide Application Range: Used in food coloring, biochemistry, and production of indigo white and bromized indigo.

Company profile

Zhengzhou Kelai Chemical Co., Ltd.

Henan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2015-01-21Average Response Time: ≤3.81hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, DAP

AI-Powered supplier vetting

SummaryZhengzhou Kelai Chemical Co., Ltd. is identified as a trading company headquartered in Zhengzhou, Henan, with permitted import and export activities. The provided information describes fine-chemical R&D, production, operations, and exports to more than 68 countries, although other records characterize the entity as a chemical-products trading business. It reports ISO 9001 and ISO 14001 certifications, OEM/ODM availability, recent new-product activity, and multiple customization options. Service logistics include warehousing, contract-carrier transportation, and stated lead times within 15 working days in both peak and off-season periods. However, it has no overseas showroom, agents, branches, or offline trade-show participation, and no SDK is available. Financial records are indicated for 2023–2025, but no substantive financial-performance evidence is provided. Supplier-management procedures are not documented, and customer evidence is limited to general claims of OEM service for known brands and exports...

Supplier typeThe supplier is explicitly classified as a trading company, with permitted import/export activities and a Zhengzhou, Henan location. Its background description also states involvement in fine-chemical R&D, production, and operations, so the available records present both trading and product-related capabilities.

CertificationsThe supplier reports holding ISO 14001 and ISO 9001 certifications. These are explicit certifications relevant to environmental and quality management systems.

After-Sales capabilityService support includes warehousing, contract-carrier transportation, and stated lead times within 15 working days in both peak and off-season periods. However, the supplier reports no overseas showroom, agents, branches, or offline trade-show participation, and offers overseas services in zero countries; therefore, after-sales coverage is not demonstrated as strong, particularly internationally.

R&D capabilityThe supplier reports R&D capability, at least one new product during the past year, and ODM services; its company background describes fine-chemical R&D. However, it explicitly has no available SDK, so innovation support is evidenced for product development but not for SDK-based integration.

Customization capabilityThe supplier explicitly offers customization from samples, full customization, minor customization, flexible customization, and customization from designs. It also reports ODM availability, providing direct evidence of broad customization support.