Skip to Content
Merck
CN
All Photos(2)

Documents

T5525

Sigma-Aldrich

3,3′,5,5′-Tetramethylbenzidine

tablet, 1 mg substrate per tablet

Sign Into View Organizational & Contract Pricing
All Photos(2)
Synonym(s):
BM blue, Sure Blue TMB, TMB, TMB Blotting Plus, TMB substrate
Linear Formula:
[-C6H2(CH3)2-4-NH2]2
CAS Number:
54827-17-7
Molecular Weight:
240.34
Beilstein:
2808541
MDL number:
MFCD00007748
UNSPSC Code:
12352204
PubChem Substance ID:
24900293
NACRES:
NA.83

Quality Level

200

form

tablet

mp

168-171 °C (lit.)

storage temp.

2-8°C

SMILES string

Cc1cc(cc(C)c1N)-c2cc(C)c(N)c(C)c2

InChI

1S/C16H20N2/c1-9-5-13(6-10(2)15(9)17)14-7-11(3)16(18)12(4)8-14/h5-8H,17-18H2,1-4H3

InChI key

UAIUNKRWKOVEES-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

3,3′,5,5′-Tetramethylbenzidine has been used as a substrate in competitive enzyme-linked immunosorbent assay (ELISA) and indirect ELISA.
3,3′,5,5′-Tetramethylbenzidine (TMB) is a noncarcinogenic substitute (Ames test negative) for benzidine suitable as peroxidase substrate for use in ELISA procedures. The substrate produces a soluble end product that is pale blue in color and can be read spectrophotometrically at 370 or 620-650 nm. The TMB reaction may be stopped with 2 M H2SO4 (resulting in a yellow color), and read at 450 nm. A sensitive and specific reagent for the detection of blood, assay of hemoglobin, assay of peroxidases.

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Statements

H302,H351,H413

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 4 - Carc. 2

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Lactobacillus casei LcY decreases milk protein immunoreactivity of fermented buttermilk but also contains IgE-reactive proteins
Wroblewska B, et al.
Food Research International, 83, 95-101 (2016)
Effect of acylation and enzymatic modification on pea proteins allergenicity
Szymkiewicz, A and Jedrychowski, L
Polish Journal of Food and Nutrition Sciences, 58(3) (2008)
Immunoreactive properties of peptide fractions of cow whey milk proteins after enzymatic hydrolysis
Wroblewska B, et al.
Polish Journal of Food and Nutrition Sciences, 39(8), 839-850 (2004)
Simon Z He et al.
Leukemia & lymphoma, 56(5), 1406-1415 (2014-09-25)
Acute myeloid leukemia (AML) blasts express high levels of interlekin-3 (IL-3) receptor-α (CD123). CSL360 is a recombinant, chimeric immunoglobulin G1 (IgG1), anti-CD123 monoclonal antibody (MoAb) that neutralizes IL-3 and demonstrates anti-leukemic activity in vitro. This phase 1 study assessed safety
Ronit Mazor et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(23), 8571-8576 (2014-05-07)
Nonhuman proteins have valuable therapeutic properties, but their efficacy is limited by neutralizing antibodies. Recombinant immunotoxins (RITs) are potent anticancer agents that have produced many complete remissions in leukemia, but immunogenicity limits the number of doses that can be given
View All Related Papers

Articles

Colorimetric Phosphatase/Peroxidase Substrate Systems

NBT-BCIP substrate system aids in western blotting and immunohistological staining, producing a blue-purple insoluble end product.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service