N-ISOPROPL-N-PHENYL-4-PHENYLENEDIAMINE
(Black rubber mix)

This patient information on Black Rubber Mix is provided by John L. Meisenheimer, M.D. a board certified Dermatologist and skin care specialist based in Orlando, Florida. This information is not intended as a substitute for the medical advice or treatment of a dermatologist or other physician.

The results from your patch testing showed a positive reaction (contact allergy) to Black rubber mix. Your immune system reacts with its defense mechanisms with each exposure of Black rubber mix to your skin. It is unknown why certain individuals develop allergic sensitivities. In some it may take repeat exposures over long periods of time before an allergy develops. Once you have become sensitized (allergic) your immune system always “remembers” and you will be Black rubber mix sensitive. If you currently have eczema this chemical may be the cause but other factors may play a role as well. The information below will help you avoid this allergen.

This is a mix of three chemicals, which are commonly used as antioxidants in the production of industrial black rubber products.

Where is chemical found?

Automotive belts
Elasticized clothing
Handles
Rubber boots
Scuba equipment
Shoe soles
Squash balls
Tires
Watchbands

Hints on avoiding chemical:

Minimize exposure to all black or gray rubber products.
It may take 2 to 3 weeks of avoiding exposure before improvement of your eruption begins.

Other names you may see this product listed as:

Akrochem Antioxidant PD1
Anto H
Butadiene
Chloroprene rubber IPPD
Diphenyl PPD
Flexzone 3-C
Flexzone GH
Isopropyl O PPD
N,N-dipheny-4-phenylenediamine
N-cyclohexyl-N-phenyl-4-phenylenediamine
N-isopropyl-N-phenyl-4-phenlenediamine
Nitrile-butadiene
Permanex IPPD
Phenylcyclohexyl PPD
Santoflex
Styrene-butadiene
CPPD
Flexizone GH
N-phenyl-N’cyclohexyl-phenylenediamine
Phenycyclohexyl PPD
1,4-Dianilinobenzene
Diphenyl PPD
DPPD
N,N-Diphenyl-4-phenylenediamine
N,N-Diphenyl-p-phenylenediamine
N-N-Diphenyl-1,4-benzenediamine

Possible Occupational Exposures:

Machinist
Mechanics