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B9934

Sigma-Aldrich

BTA-1

≥98% (HPLC), solid

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Synonym(s):
2-(4´-Methylaminophenyl)benzothiazole
Empirical Formula (Hill Notation):
C14H12N2S
CAS Number:
Molecular Weight:
240.32
MDL number:
PubChem Substance ID:
NACRES:
NA.77

Assay

≥98% (HPLC)

form

solid

color

yellow

solubility

DMSO: soluble ~10 mg/mL

storage temp.

2-8°C

SMILES string

CNc1ccc(cc1)-c2nc3ccccc3s2

InChI

1S/C14H12N2S/c1-15-11-8-6-10(7-9-11)14-16-12-4-2-3-5-13(12)17-14/h2-9,15H,1H3

InChI key

FHJRKGXJBXPBGA-UHFFFAOYSA-N

Gene Information

human ... APP(351)

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This Item
F3680A7232G5547
BTA-1 ≥98% (HPLC), solid

Sigma-Aldrich

B9934

BTA-1

10058-F4 ≥98% (HPLC), solid

Sigma-Aldrich

F3680

10058-F4

AP-18 ≥98% (HPLC), solid

Sigma-Aldrich

A7232

AP-18

Sigma-Aldrich

Sigma-Aldrich

G5547

GSK837149A

form

solid

form

solid

form

solid

form

solid

color

yellow

color

yellow

color

white to off-white

color

white to off-white

solubility

DMSO: soluble ~10 mg/mL

solubility

DMSO: >10 mg/mL, H2O: <2 mg/mL

solubility

DMSO: >10 mg/mL

solubility

DMSO: >10 mg/mL, H2O: insoluble

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

Biochem/physiol Actions

BTA-1 is a probe for β-amyloid aggregates; fluorescent thioflavin-T derivative; exhibits high affinity for amyloid deposits; displays 50-fold higher affinity than thioflavin-T; selectively stains cerebral plaques and cerebrovascular amyloid deposits in the brains of PS1/APP transgenic mice, as well as Aβ fibrils in postmortem brain tissue obtained from AD patients; crosses the blood brain barrier.

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

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William E Klunk et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 23(6), 2086-2092 (2003-03-27)
2-(4'-methylaminophenyl)benzothiazole (BTA-1) is an uncharged derivative of thioflavin-T that has high affinity for Abeta fibrils and shows very good brain entry and clearance. In this study, we asked whether BTA-1, at concentrations typical of those achieved during positron emission tomography
Elena Rodriguez-Vieitez et al.
European journal of nuclear medicine and molecular imaging, 42(7), 1119-1132 (2015-04-22)
Pathological studies suggest that neuroinflammation is exacerbated by increased beta-amyloid (Aβ) levels in the brain early in Alzheimer's disease (AD). The time course and relationships between astrocytosis and Aβ deposition were examined using multitracer in vivo positron emission tomography (PET)
Sajjad Molavipordanjani et al.
European journal of medicinal chemistry, 175, 149-161 (2019-05-13)
Six novel 2-arylimidazo[2,1-b]benzothiazole (IBT) derivatives were synthesized as potential tridentate radiotracers for AD imaging purposes. Two of these ligands (6a,b) were successfully labeled with 99mTc radionuclide at high radiochemical purity using fac-[99mTc(CO)3(H2O)3]+ synthon. [99mTc]7a and [99mTc]7b were evaluated as single
Alex C Kwan et al.
Optics express, 17(5), 3679-3689 (2009-03-05)
Intrinsic optical emissions, such as autofluorescence and second harmonic generation (SHG), are potentially useful for functional fluorescence imaging and biomedical disease diagnosis for neurodegenerative diseases such as Alzheimer's disease (AD). Here, using multiphoton and SHG microscopy, we identified sources of
Chester A Mathis et al.
Bioorganic & medicinal chemistry letters, 12(3), 295-298 (2002-01-30)
The synthesis of a new lipophilic thioflavin-T analogue (2-[4' -(methylamino)phenyl]benzothiazole, 6) with high affinity for amyloid is reported. Intravenous injection of [(11)C]-labeled 6 in control mice resulted in high brain uptake. Amyloid deposits were imaged with multiphoton microscopy in the

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