C.I. Natural Yellow 16
2-hydroxy-3-(3-methylbut-2-enyl)-1,4-naphthoquinone
CAS: 84-79-7
Molecular Formula: C15H14O3
C.I. Natural Yellow 16 - Names and Identifiers
| Name | 2-hydroxy-3-(3-methylbut-2-enyl)-1,4-naphthoquinone |
| Synonyms | Lapachol CI 75490 LAPACHOL C.I. 75490 NATURAL YELLOW 16 C.I. Natural Yellow 16 2-hydroxy-3-(3-methyl-2-butenyl)-4-naphthoquinone 2-hydroxy-3-(3-methylbut-2-enyl)-1,4-naphthoquinone 2-HYDROXY-3-(3-METHYLBUT-2-ENYL)-1,4-NAPHTHOQUINONE 2-HYDROXY-3-(3-METHYL-2-BUTENYL)-1,4-NAPHTHOQUINONE 2-Hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthalenedione 1,4-Naphthoquinone, 2-hydroxy-3-(3-methyl-2-butenyl)- 4-hydroxy-3-(3-methylbut-2-en-1-yl)naphthalene-1,2-dione 2-hydroxy-3-(3-methylbut-2-en-1-yl)naphthalene-1,4-dione |
| CAS | 84-79-7 |
| EINECS | 201-563-7 |
| InChI | InChI=1/C15H14O3/c1-9(2)7-8-12-13(16)10-5-3-4-6-11(10)14(17)15(12)18/h3-7,18H,8H2,1-2H3 |
| InChIKey | CIEYTVIYYGTCCI-UHFFFAOYSA-N |
C.I. Natural Yellow 16 - Physico-chemical Properties
| Molecular Formula | C15H14O3 |
| Molar Mass | 242.27 |
| Density | 1.2077 (rough estimate) |
| Melting Point | 141-143°C(lit.) |
| Boling Point | 325.09°C (rough estimate) |
| Flash Point | 203.912°C |
| Solubility | ethanol: soluble10mg/mL, clear, light yellow to yellow |
| Vapor Presure | 0mmHg at 25°C |
| Appearance | Solid |
| Color | Yellow to Dark Yellow |
| Merck | 13,5382 |
| pKa | 4.81±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.5740 (estimate) |
| MDL | MFCD00001679 |
C.I. Natural Yellow 16 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| RTECS | QL8750000 |
| Toxicity | LD50 in male, female BALB/c mice (g/kg): 0.487; 0.792 orally (Morrison) |
C.I. Natural Yellow 16 - Reference Information
| Color index | 75490 |
| biological activity | Lapachol is a naphthoquinone, which was first isolated from Tabebuia avellanedae (liviridae). Lapachol has anti-abscess, anti-ulcer, anti-fungal, anti-cancer, anti-toxic, anti-inflammatory, anti-malarial, antiseptic, anti-tumor, anti-viral, antibacterial, anti-fungal and insecticidal activity. |
| production method | preparation of quinone from the oxidation of dihydric phenol, phenol and aromatic amines |
Last Update：2024-04-09 21:54:55
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