Thymoquinone ≥98%, Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
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Synonyms: p-Mentha-3,6-diene-2,5-dione, 2-Isopropyl-5-methylcyclohexa-2,5-diene-1,4-dione, 5-Isopropyl-2-methyl-1,4-benzoquinone

M-Clarity™ quality level = MQ100

274666-1G 274666-5G
274666-1GEA 110 EUR
274666-1G 274666-5G
Thymoquinone ≥98%, Sigma-Aldrich®
Thymoquinone

Thymoquinone has been used as an inhibitor of Escherichia coli ATP synthase and cell growth. It is also used as a drug against lower limb ischemia-reperfusion injury of sciatic nerve and femoral muscle. Thymoquinone is employed in preclinical studies as a neuroprotective and anticonvulsant agent.


Thymoquinone (TQ), also known as 2-isopropyl-5-methyl-1, 4-benzoquinone, is present in a crystalline triclinic form. It is the bioactive constituent of the volatile oil of black seed. TQ exhibits anti-inflammatory, antioxidant and anti-neoplastic effects both in vitro and in vivo.

Formula: C₁₀H₁₂O₂
MW: 164,20 g/mol
Boiling Pt: 230,..232 °C (lit.)
Melting Pt: 45,..47 °C (lit.)
Flash Pt: 104 °C (closed cup)
Storage Temperature: Room Temperature
MDL Number: MFCD00001602
CAS Number: 490-91-5
EINECS: 207-721-1
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Specification Test Results

Appearance (Colour) White to Dark Yellow and Faint Orange to Orange and Faint Brown to Brown and Orange-Brown and Brown-Orange
Appearance (Form) Powder or Crystal or Chunk(s)
Infrared spectrum Conforms to Structure
Purity (GC) ≥98.0%

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