TMB color reagent A solution (3,3',5,5'-tetramethylbenzidine)

Cat. No.: T117927
AVAILABLE TO ORDER
Synonyms
3,3′,5,5′-Tetramethylbenzidine Liquid Substrate System TMB
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
Application
ELISA
Size
USA
Germany (EU)*
Price
Qty
25ml
T117927-25ml
2 In stock
$28.90
100ml
T117927-100ml
5 In stock
$85.90
500ml
T117927-500ml
Made to order · 8–12 wks
$285.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

TMB is a substrate for horseradish peroxidase. Forms a soluble blue end product that may be read at 370 nm or 655 nm. The TMB reaction may be stopped with 0.5 M H2SO4, resulting in a yellow color, and read at 450 nm. Recommended for ELISA (microwell) procedures, not recommended for membrane applications. 3,3′,5,5′-Tetramethylbenzidine has been used in a study to demonstrate that by measuring substrate absorption values off the absorption maximum, the measuring range of any immunoenzymometric assay can be extended significantly without jeopardizing assay characteristics. 3,3′,5,5′-Tetramethylbenzidine has also been used in a study to understand the formation of CuS concave superstructures with peroxidase-like activity.

Specifications

Synonyms
3,3′,5,5′-Tetramethylbenzidine Liquid Substrate System TMB
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

19 results found

Lot NumberCertificate TypeDateItem
K2429330Certificate of AnalysisSep 01, 2026 T117927
K2418004Certificate of AnalysisSep 01, 2026 T117927
D2525349Certificate of AnalysisJul 30, 2026 T117927
L2529263Certificate of AnalysisJul 03, 2026 T117927
L2529241Certificate of AnalysisJul 03, 2026 T117927
L2529237Certificate of AnalysisJul 03, 2026 T117927
A2429415Certificate of AnalysisJul 03, 2026 T117927
F2413076Certificate of AnalysisMar 18, 2026 T117927
D2525348Certificate of AnalysisAug 11, 2025 T117927
D2525347Certificate of AnalysisMar 24, 2025 T117927
K2429331Certificate of AnalysisMar 04, 2025 T117927
K2429332Certificate of AnalysisNov 21, 2024 T117927
F2221525Certificate of AnalysisOct 20, 2022 T117927
F2221526Certificate of AnalysisOct 20, 2022 T117927
B2318865Certificate of AnalysisOct 11, 2022 T117927
L2304055Certificate of AnalysisOct 11, 2022 T117927
B2318877Certificate of AnalysisOct 11, 2022 T117927
B2318874Certificate of AnalysisOct 11, 2022 T117927
F2221527Certificate of AnalysisJun 12, 2022 T117927

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Chemical and Physical Properties
SensitivityLight sensitive
Documents & Articles
Solution Calculators
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