Skip to Content
Merck
All Photos(2)

Key Documents

09743

Supelco

3,3′,5,5′-Tetramethylbenzidine

standard for GC

Synonym(s):

BM blue, Sure Blue TMB, TMB, TMB Blotting Plus, TMB substrate

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
[-C6H2(CH3)2-4-NH2]2
CAS Number:
Molecular Weight:
240.34
Beilstein:
2808541
EC Number:
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard
standard for GC

Quality Level

Assay

≥99.0% (GC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

166-171 °C
168-171 °C (lit.)

application(s)

environmental

format

neat

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

Application

3,3′,5,5′-Tetramethylbenzidine may be used as a substrate for the analysis of diclofenac in water samples and dextromethorphan and its major metabolite dextrorphan in urine samples using enzyme-linked immunosorbent assay (ELISA) and gas chromatography coupled to mass spectrometry (GC-MS).
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.

Other Notes

this product will be discontinued, please find the alternative product here :
860336
Standard for determining aromatic amines released from azo-dyes in commodities

Recommended products

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Pictograms

Health hazardExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

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

Visit the Document Library

G. Rohm et al.
GIT Labor-Fachzeit., 1080-1080 (1997)
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
Michael F Sharp et al.
Molecular immunology, 62(1), 77-85 (2014-06-29)
Fish allergy is a common food allergy, with prevalence rates in the general population ranging between 0.2% and 2.3%. In both adults and children fish ranks in the top eight foods known to cause IgE mediated food allergy. Fish allergy
Per A Larsson et al.
Colloids and surfaces. B, Biointerfaces, 101, 205-209 (2012-09-27)
A new method for detection of viruses has been developed. The entire assay can be performed within 2h, and consists of a polyelectrolyte-multilayer-modified cellulosic filter paper combined with immunodetection. The M13 bacteriophage was used as a model virus. A visual
Miriam Reuschenbach et al.
Cancer immunology, immunotherapy : CII, 63(12), 1251-1259 (2014-08-22)
Humoral immune responses against tumor antigens are studied as indirect markers of antigen exposure and in cancer vaccine studies. An increasing number of tumor antigens potentially translated from mutant genes is identified by advances in genomic sequencing. They represent an

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