You can email us at, or call us on 01202 539791.Email: Phone: 01202 539791.


N,N,N′,N′-Tetramethyl-p-Phenylenediamine Dihydrochloride

Also known as Wurster’s reagent. It is used in the oxidase test in microbiology to determine if a bacterium produces certain cytochrome c oxidases.It uses disks impregnated with a reagent such as N,N,N′,N′-tetramethyl-p-phenylenediamine (TMPD) or N,N-dimethyl-p-phenylenediamine (DMPD), which is also a redox indicator. The reagent is a dark-blue to maroon color when oxidized, and colorless when reduced.

Product Details

Category Microbiology Products
Price POA
CAS Number 637-01-4
Formula C6H4[N(CH3)2]2·2HCl
Molecular Weight 237.17
Purity 97%
Appearance Off-white to grey-brown powder
Availability In Stock
Storage Conditions Room temperature

Product Enquiry

Send us your enquiry for N,N,N′,N′-Tetramethyl-p-Phenylenediamine Dihydrochloride. We offer custom pack sizes at special prices. We aim to respond to your enquiry within 24 hours.

We value your input so if you have suggestions regarding new applications for N,N,N′,N′-Tetramethyl-p-Phenylenediamine Dihydrochloride email us and we will include your contribution on the website.

Enquire about product

Back to Top