3,3′,5,5′-Tetramethylbenzidine , 98% , 54827-17-7
Synonym(s):
TMB;3,3′,5,5′-Tetramethylbenzidine;TMB substrate;3,3?,5,5?-Tetramethylbenzidine;TMB, Insoluble
CAS NO.：54827-17-7
Empirical Formula: C16H20N2
Molecular Weight: 240.34
MDL number: MFCD00007748
EINECS: 259-364-6
| Pack Size | Price | Stock | Quantity |
| 1G | RMB53.60 | In Stock |
|
| 5G | RMB112.00 | In Stock |
|
| 25G | RMB373.60 | In Stock |
|
| 100G | RMB1443.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 168-171 °C(lit.) |
| Boiling point: | 100 °C |
| Density | 1 |
| refractive index | 1.5519 (estimate) |
| storage temp. | 2-8°C |
| solubility | Slightly soluble. <0.1 g/100 mL at 20°C. |
| pka | 4.49±0.10(Predicted) |
| form | tablet |
| color | Cream |
| Water Solubility | Slightly soluble. <0.1 g/100 mL at 20 ºC |
| Sensitive | Light Sensitive |
| BRN | 2808541 |
| Stability: | Stable, but moisture sensitive and may be light sensitive. Incompatible with water, strong oxidizing agents. |
Description and Uses
Tetramethylbenzidine(TMB) is a chromogenic substrate used in staining procedures in immunohistochemistry as well as being a visualising reagent used in enzyme-linked immunosorbent assays (ELISA). It is a white solid that forms a pale blue-green liquid in solution with ethyl acetate. TMB is degraded by sunlight and by fluorescent lights. It is a soluble chromogen substrate for horseradish peroxidase detection systems. Tetramethylbenzidine is recommended for ELISA procedures.
3,3,5,5-Tetramethyl benzidine is used as a reagent in a sensitive staining procedure for the detection of low levels of heme-associated peroxidase activity of cytochrome P-450 on SDS-polyacrylamide or agarose gel; non-carcinogenic substitute for benzidine as reagent for the detection of blood and determination of hemoglobin content.
Safety
| Symbol(GHS) |    GHS07,GHS08,GHS02 |
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335-H225-H312-H332-H370 |
| Precautionary statements | P210-P280-P303+P361+P353-P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P260-P280h-P308+P311a |
| Hazard Codes | Xi,Xn |
| Risk Statements | 36/38-36/37/38-22-41 |
| Safety Statements | 26-36-36/37-39 |
| RIDADR | UN 2796 8/PG 2 |
| WGK Germany | 3 |
| RTECS | DV2300000 |
| F | 8-10 |
| TSCA | Yes |
| HazardClass | 6.1 |
| HS Code | 29215990 |
