Sinocure Chemical Group Co.,Ltd.

Other Catalysts And Additives

Sinocure® CD-4

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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SKU SCGNK005 Category

Sinocure® CD-4

Molecular structure:

Color-developing agent CD-4 Pperties

content [CD–4] % 99.0-102.0
appearance whitei particle or powder
5%water solution appearance colorless
volatile matter % ≤0.1
PH range 2.10-2.50
CD/H acid 1.000±0.010
melting point℃ 156-160
ash content % ≤0.1
heavy metal % ≤0.001
Acidic aqueous solution qualified
Alkaline aqueous solution qualified
Photographic properties qualified
aging characteristic qualified


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.


Other name

Color-developing agent CD-4

Cas No.


Molecular formula


Molecular weight





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