Hydroquinone USP Photographic Grade
High-purity hydroquinone (1,4-dihydroxybenzene) specifically refined for photographic applications, meeting USP standards for consistency. Classified under HTS 2907.22.10.00 as photographic grade hydroquinone, a polyphenol used in developer solutions for black-and-white film processing. Its chemical structure as quinol distinguishes it from industrial grades.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If industrial or technical grade
Non-photographic grades of hydroquinone fall under the general subheading for other salts and derivatives.
If monophenols like phenol-alcohols
Single-ring phenols without the dihydroxy structure of hydroquinone are classified earlier in the phenols heading.
If pre-mixed in developer solution
Hydroquinone in formulated photographic chemicals or mixtures is classified as diagnostic reagents rather than pure compounds.
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Import Tips & Compliance
• Verify 'photographic grade' purity certification (min 99%) via supplier COA to avoid reclassification; include MSDS for hazmat shipping as it's oxidizer; ensure packaging prevents light exposure to maintain stability
Related Products under HTS 2907.22.10.00
Kodak Hydroquinone Photographic Crystals
Crystalline hydroquinone produced to exacting photographic standards, historically supplied by Kodak for professional film development. Falls under HTS 2907.22.10.00 due to its designation as photographic grade quinol, essential for controlling image density in silver halide emulsions. Purity exceeds 99.5% to prevent fogging.
Ilford Hydroquinone for Black & White Developers
Premium photographic grade hydroquinone crystals from Ilford, optimized for high-contrast black-and-white film processing. Classified in HTS 2907.22.10.00 as it meets chapter notes for separate chemically defined polyphenols used in photography. Provides super-additivity with metol in classic formulas like ID-11.
Agfa Photographic Hydroquinone Powder
Fine powder hydroquinone of Agfa's photographic specification, used in motion picture film developers for archival quality. HTS 2907.22.10.00 applies to this polyphenol quinol meeting strict impurity limits for photo use. Develops latent images by reducing exposed silver halides.
FujiFilm Hydroquinone Super Fine Crystals
Ultra-fine crystal hydroquinone engineered by FujiFilm for rapid-dissolving photographic developers in color and B&W films. Falls precisely under HTS 2907.22.10.00 as photographic grade quinol per chapter definitions for pure organic compounds. Particle size optimized (<50 microns) for consistent emulsions.
Adox Hydroquinone for Analog Photography
Photographic grade hydroquinone supplied by Adox for artisanal film developers, supporting the analog revival. Classified HTS 2907.22.10.00 as it qualifies under chapter note (a) for chemically defined polyphenols of photographic purity. Used in formulas like Adox Adonal for fine grain.
Pure Hydroquinone Monohydrate Photographic
Hydrated form of photographic grade hydroquinone (C6H4(OH)2·H2O), stable for shipping and storage in photo labs. HTS 2907.22.10.00 covers this quinol salt equivalent under chapter notes allowing stabilizers/water dissolution for transport. Preferred for metol-hydroquinone developers.