Sodium Salt of 1-Amino-8-naphthol-3,6-disulfonic Acid (H Acid) from China
H Acid Sodium Salt (Sodium Salt of 1-Amino-8-naphthol-3,6-disulfonic Acid) is a critical coupling component for reactive dyes, featuring amino-hydroxy-disulfonic functions on naphthalene. It meets Chapter 29 criteria for chemically defined amino-oxygen compounds and their salts, placing it under tariff item 2922.21.00. The sodium salt form is included as a salt of the acid.
Duty Rate — China → Canada
0%
Import Tips
• Verify that the product is not put up in measured doses or for retail sale, as per Section VI Note 2
• Provide a certificate of analysis to confirm the chemical identity and salt form
• Be aware that the product may be subject to anti-dumping or countervailing duties; check the CBSA's measures in force