Thioflavin T (solution)
Based on 1 Customer Validation
Thioflavin T (solution) is a cationic Benzothiazole dye that shows enhanced fluorescence upon binding to amyloid in tissue sections. Excitation max.: ~385 nm (free) ; ~450 nm (bound) ; Emission max.: ~445 nm (free) ; ~485 nm (bound) .
Solvent and Concentration: Sterile water: 10 mM
The 1 mL volume is defined as the base specification. All larger sizes correspond to incremental volumes of this base.
연구목적의 판매만을 진행합니다. 환자를 대상으로 한 판매는 하지 않습니다.
- CAS No.: 2390-54-7
- 화학식: C17H19ClN2S
- 분자량:318.86
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보관:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
제품 설명
Solvent and Concentration: Sterile water: 10 mM
The 1 mL volume is defined as the base specification. All larger sizes correspond to incremental volumes of this base.
In Vitro
Thioflavin T is a fluorescent dye that can bind to β-fold-rich structures and is often used to measure protein fibrillation. Once bound, the emission spectrum of Thioflavin T will be red-shifted and the fluorescence intensity will increase, which can also be used to detect fibril formation. Here is a reference protocol for Aβ fibrils detection[2][3].
Guide (The following is our recommended protocol. This protocol is only a guide and should be modified according to your specific needs).
1. Prepare a mixed sample containing LMW Aβ42 (5.5 μM) , Thioflavin T solution (20 μM) , and NaCl (100 mM).
2. The mixtures were prepared in a 96-well half-area microplate. Seal the well plate and place it in a shaking incubator at 37°C for indicated time.
3. Shake for 20 seconds before testing. Set the excitation light to 450 nm and the emission light to 485 nm. Read the fluorescence value using a microplate reader.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
Chemical Information
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CAS No. 2390-54-7
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Appearance Liquid (Density: 1.301 g/cm3)
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분자량 318.86
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화학식 C17H19ClN2S
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Color Light yellow to yellow
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SMILES
CC1=CC=C2[N+](C)=C(C3=CC=C(N(C)C)C=C3)SC2=C1.[Cl-]
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선적
Room temperature in continental US; may vary elsewhere.
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보관
Please store the product under the recommended conditions in the Certificate of Analysis.
Protocol
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Amyloid: Congo Red Amyloid Staining
Congo red amyloid staining is a histochemical method used to detect extracellular amyloid deposits in tissue sections based on the affinity of Congo red dye for β-pleated sheet-rich protein aggregates. When bound to amyloid, Congo red produces characteristic apple-green birefringence under polarized light microscopy, which is widely regarded as a diagnostic feature of amyloid deposition in histopathology. The diagnostic principle relies on the combination of dye binding (congophilia) and optical anisotropy under polarized illumination, which distinguishes amyloid from most non-amyloid eosinophilic extracellular deposits in routine histological evaluation. Amyloid identification by Congo red staining remains a cornerstone in diagnostic pathology despite the availability of adjunct methods such as immunohistochemistry and mass spectrometry, particularly because of its ability to localize deposits directly within tissue architecture. The specificity of Congo red-positive deposits is incre
순도&문서
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Data Sheet (269 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
[1]. Nakano H, et al. Globular-shaped Aβ oligomers have diverse mechanisms for promoting Aβ aggregations with the facilitation of fibril elongation. Neurobiol Dis. 2025 Feb;205:106775. [Content Brief]
[2]. Muramatsu D, et al. ALZ-801 prevents amyloid β-protein assembly and reduces cytotoxicity: A preclinical experimental study. FASEB J. 2025 Feb 15;39(3):e70382. [Content Brief]
[3]. Khurana R, et al. Mechanism of thioflavin T binding to amyloid fibrils. J Struct Biol. 2005 Sep;151(3):229-38. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)