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Sinocure® CD-4

Other Catalysts And Additives

The color developer (CD-4 type) is white or off-white crystalline powder. Chemically known as 4-(N-ethyl-N-hydroxyethyl)-2-methylphenylenediamine sulfate. During color development, the oxidizing color developer reduces the silver atoms in the silver halide crystals, and then combines with the color coupler to form color dye molecules.

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Sinocure® CD-4


Chemical name: (4-ammonio-m-tolyl)ethyl(2-hydroxyethyl)ammonium sulphate;Color-developing agent CD-4;Kodak CD 4;PPD 4 4

Cas No. : 25646-77-9

Molecular formula: C11H20N2O5S

Molecular weight: 292.35

Molecular structure:





Color-developing agent CD-4 Pperties :
content [CD–4] %99.0-102.0
appearancewhitei particle or powder
5%water solution appearancecolorless
volatile matter %≤0.1
PH range2.10-2.50
CD/H acid1.000±0.010
melting point℃156-160
ash content %≤0.1
heavy metal %≤0.001
Acidic aqueous solutionqualified
Alkaline aqueous solutionqualified
Photographic propertiesqualified
aging characteristicqualified


Color-developing agent CD-4 Function :

Used as a high-temperature fast developer for oil-soluble color film in film and photography departments

Color-developing agent CD-4 Packaging and Shipping :

  • Packing: 25kg / drum.

  • Delivery:with in 5-7 working days.

Color-developing agent CD-4 Storage :

Stored in a cool dry place(2-8° C) out of direct sunlight.

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WHY CHOOSE SINOCURE?

  • Customized development

    Provide formulation optimization support for water-based/solvent-based systems

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  • Stable supply

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