• indigo
Nov . 22, 2025 00:30 Back to list

Comprehensive Guide to How to Make Blue Dye – Sustainable & Practical Insights

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Sulphur Black

Sulphur Black

1.Name: sulphur black; Sulfur Black; Sulphur Black 1;

2.Structure formula：

3.Molecule formula: C6H4N2O5

4.CAS No.: 1326-82-5

5.HS code: 32041911

6.Product specification:Appearance：black phosphorus flakes; black liquid

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Bromo Indigo; Vat Bromo-Indigo; C.I.Vat Blue 5

Bromo Indigo; Vat Bromo-Indigo; C.I.Vat Blue 5

1.Name: Bromo indigo; Vat bromo-indigo; C.I.Vat blue 5;

2.Structure formula：

3.Molecule formula: C16H6Br4N2O2

4.CAS No.: 2475-31-2

5.HS code: 3204151000 6.Major usage and instruction: Be mainly used to dye cotton fabrics.

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Indigo Blue Vat Blue

Indigo Blue Vat Blue

1.Name: indigo blue,vat blue 1,

2.Structure formula：

3.Molecule formula: C16H10N2O2

4.. CAS No.: 482-89-3

5.Molecule weight: 262.62

6.HS code: 3204151000

7.Major usage and instruction: Be mainly used to dye cotton fabrics.

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