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2,5-Cyclohexadiene-1,4-dione, 2-methyl-5-(1-methylethyl)-

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Formula: C10H12O2
CAS: 490-91-5

Identification

Structural Formula
2,5-Cyclohexadiene-1,4-dione, 2-methyl-5-(1-methylethyl)-
CAS:
490-91-5
EINECS:
207-721-1
Molecular Formula:
C10H12O2
MDL:
MFCD00001602
SMILES:
CC(C1=CC(=O)C(=CC1=O)C)C
Synonym:
black seed extract ; thymoquinone,99% ; thymoquinone ; semen nigellae ; p-cymene-2,5-dione ; aurora ka-6714 ; timtec-bb sbb008296 ; nsc 2228 ; thymolquinone ; thymoquinon




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Prices & Availability




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Properties for 2,5-Cyclohexadiene-1,4-dione, 2-methyl-5-(1-methylethyl)-

Molecular Weight:
164.2 g·mol−1
Density:
1.07 g/cm3 (Predicted)
Melting point:
45-47 °C(lit.)
Boiling point:
230-232 °C(lit.)
Flash point:
219 ºF
Solubility:
Soluble in ether, alcohol, water (0.87 mg/ml at 25° C), chloroform, and methanol.
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Hazard Statements

GHS07

GHS03
Harmful
  • Acute toxicity (oral, dermal, inhalation), category 4
  • Skin irritation, categories 2, 3
  • Eye irritation, category 2A
  • Skin sensitization, category 1
  • Specific target organ toxicity following single exposure, category 3
    - Respiratory tract irritation
    - Narcotic effects
  • Not used
  • with the "skull and crossbones" pictogram
  • for skin or eye irritation if:
  • the "corrosion" pictogram also appears
  • the "health hazard" pictogram is used to indicate respiratory sensitization

Safety & Transport Information

Risk Codes:
R22 - Harmful if swallowed
R36/37/38 - Irritating to eyes, respiratory system and skin
Safety Codes:
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36 - Wear suitable protective clothing
Hazard Symbols:
Xn
Hazard symbol Xn
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Alternative Distributors of [2,5-Cyclohexadiene-1,4-dione, 2-methyl-5-(1-methylethyl)-]

Producers or manufacturers change the product range from time to time. The following companies
have appeared as suppliers in the past / currently not verified

ABCR GmbH & Co. KG | Frinton Laboratories | TCI Europe NV | BOC Sciences | Pfaltz & Bauer, Inc. | Tianjin Liankuan Fine Chemicals Co., Ltd.

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