| Product Identification | Back to Contents | 【Product Name】
4',7-Dihydroxyisoflavone | 【Synonyms】
7-Hydroxy-3-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
7-Hydroxy-3-(4-hydroxyphenyl)chromen-4-one | 【CAS】
486-66-8 | 【Formula】
C15H10O4 | 【Molecular Weight】
254.24 | 【EINECS】
207-635-4 | 【RTECS】
DJ3100040 | 【RTECS Class】
Drug | 【Merck】
13,2829 | 【Beilstein/Gmelin】
231523 | 【Beilstein Reference】
5-18-04-00089 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Almost white solid. | 【Solubility in water】
Insoluble | 【Melting Point】
212 - 214 | 【Boiling Point】
513 | 【Vapor Pressure】
4E-11 (25 C) | 【pKa/pKb】
7.54 | 【Partition Coefficient】
2.97 | 【Heat Of Vaporization】
81.4 kJ/mol | 【Usage】
Used to evaluate time-resolved fluoroimmunoassay for determination of daidzein in plasma (serum). |
| First Aid Measures | Back to Contents | 【Ingestion】
Get medical aid. Wash mouth out with water. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a tightly closed container. Deep freeze (below -20 C). | 【Handling】
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. |
| Hazards Identification | Back to Contents | 【Ingestion】
May cause irritation of the digestive tract. May be harmful if swallowed. May cause headache, drowsiness, and | 【Inhalation】
Causes respiratory tract irritation. May be harmful if inhaled. Exposure to high concentrations may cause narcosis. | 【Skin】
Causes skin irritation. May be harmful if absorbed through the skin. | 【Eyes】
Causes eye irritation. | 【EC Risk Phrase】
R 36/37/38 | 【EC Safety Phrase】
S 26 36 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
201 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam. |
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