Fast Black Base E Salt
Fast Black Base E Salt is a double diazo fast color salt that produces deep black shades for wool and silk dyeing, with excellent wet fastness. It is a separate chemically defined organic compound with azo groups, classified under tariff item 2927.00.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is put up in retail packaging as a dye
Chapter 29 note 2(g) excludes colouring matter put up for retail sale, which falls under heading 32.04.
If the product is an aromatic amine salt
Aromatic amine salts are classified under heading 29.21.
If the product is a mixture of compounds
Mixtures not meeting the criteria for a separate chemically defined compound are classified in heading 38.24.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the product is a single chemically defined compound and not a mixture
• Provide the CAS number and technical data sheet to the CBSA for classification
• Be aware that double diazo salts may have specific handling requirements under Canadian transport regulations
Related Products under Tariff item 2927.00.00
1,1'-Azobisformamide (AZODICARBONAMIDE)
1,1'-Azobisformamide, also known as azodicarbonamide (ADCA), is a chemically defined azo compound used as a chemical foaming agent in plastics and rubber production. It decomposes thermally to release nitrogen gas.
1,1'-Azobisformamide USP Grade
1,1'-Azobisformamide USP grade is a chemically defined azo compound meeting United States Pharmacopeia standards for purity and microbial limits. It is used as a reagent in organic synthesis and pharmaceutical intermediate production.
1,3-Diphenyltriazene technical grade
1,3-Diphenyltriazene, also known as diazoaminobenzene, is a chemically defined diazo compound with a triazene (-NH-N=N-) functional group. It is used as an intermediate in azo dye synthesis and as a radical scavenger.
2-Diazo-1-Naphthol-4-Sulfonic Acid
A diazo coupling agent used in diazo-type copying papers and films, reacting to produce visible azo images upon light exposure. It is a separate chemically defined organic compound with a diazo group, classified under tariff item 2927.00.00 for diazo-, azo- or azoxy-compounds.
3,3'-Dimethoxybiphenyl-4,4'-Diazonium Salt
A complex diazo compound for high-resolution photographic printing plates and films. It is a separate chemically defined organic compound with a diazo functional group, falling under tariff item 2927.00.00 for diazo-, azo- or azoxy-compounds.
4-Aminoazobenzene-2,4-disulfonic Acid Monosodium Salt (Dye Intermediate)
4-Aminoazobenzene-2,4-disulfonic acid monosodium salt is a chemically defined diazo compound with an azo (-N=N-) linkage and sulfonic acid groups. It is used as a dye intermediate in the manufacturing of azo dyes.