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N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochloride, 98+%, Thermo Scientific Chemicals
Description
N,N,N',N'-tetramethyl-p-phenylenediamine dihydrochloride (TMPD) is an oxidizable compound that serves as a reducing co-substrate for heme peroxidases. It is also used as a test reagent in microbiology for the classification of cytochrome oxidase positive aerobic microorganisms. It finds application as a detection of peroxidases on polyacrylamide gels.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
N,N,N′,N′-tetramethyl-p-phenylenediamine dihydrochloride (TMPD) is an oxidizable compound that serves as a reducing co-substrate for heme peroxidases. It is also used as a test reagent in microbiology for the classification of cytochrome oxidase positive aerobic microorganisms. It finds application as a detection of peroxidases on polyacrylamide gels.
Solubility
Soluble in dimethyl sulfoxide, water and phosphate buffered saline at pH 7.2.
Notes
Light sensitive. Incompatible with strong oxidizing agents.

Specifications
Specifications
Melting Point | ∽228°C (decomposition) |
Assay Percent Range | 99% |
Quantity | 10 g |
Beilstein | 5132096 |
Sensitivity | Light sensitive |
Solubility Information | Soluble in dimethyl sulfoxide,water and phosphate buffered saline at pH 7.2. |
Formula Weight | 237.17 |
Percent Purity | ≥98% |
Chemical Name or Material | N,N,N',N'-Tetramethyl-p-phenylenediamine Dihydrochloride |
Safety and Handling
Hazard Category | H315-H319-H335 |
Hazard Statement | GHS H Statement H315-H319-H335 |
Precautionary Statement | P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c |
EINECSNumber | 211-274-8 |
TSCA | Yes |
Recommended Storage | Ambient temperatures |
RUO – Research Use Only
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