| Product Identification | Back to Contents | 【Product Name】
3,5,3',4'-Tetrahydroxy-7-methoxyflavone | 【Synonyms】
2-(3,4-Dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-4H-1-benzopyran-4-one
3,3',4',5-Tetrahydroxy-7-methoxyflavone
7-Methoxyquercetin
7-O-Methylquercetin
Quercetin 7-methyl ether | 【CAS】
90-19-7 | 【Formula】
C16H12O7 | 【Molecular Weight】
316.27 | 【EINECS】
201-974-1 | 【RTECS】
LK8748000 | 【RTECS Class】
Mutagen | 【Merck】
12,8337 | 【Beilstein/Gmelin】
47741 | 【Beilstein Reference】
5-18-05-00495 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
light yellow powder | 【Solubility in water】
Insoluble | 【Melting Point】
248 - 250 | 【Vapor Pressure】
1E-16 (25 C) | 【pKa/pKb】
6.73 (pKa) | 【Usage】
Has been used for dyeing wool and cotton. | 【Refractive Index】
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| First Aid Measures | Back to Contents | 【Ingestion】
If swallowed, wash out mouth with water provided person is conscious. Call a physician. | 【Inhalation】
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen. | 【Skin】
In case of contact, immediately wash skin with soap and copious amounts of water. | 【Eyes】
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes. |
| Hazards Identification | Back to Contents | 【Inhalation】
Material is irritating to mucous membranes and upper respiratory tract. May be harmful if inhaled. | 【Skin】
Causes skin irritation. May be harmful if absorbed through the skin. | 【Eyes】
Causes eye irritation. | 【Ingestion】
May be harmful if swallowed. | 【Hazards】
Emits toxic fumes under fire conditions. | 【EC Risk Phrase】
36/37/38 | 【EC Safety Phrase】
26 36/37 |
| Fire Fighting Measures | Back to Contents | 【Fire Fighting】
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes. |
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| Company Name: | J & K SCIENTIFIC LTD. |
| Tel: | 400-666-7788 +86-10-82848833 |
| Fax: | +86-10-82849933 |
| WebSite: | www.jkchemical.com |
| Company Name: | Meryer (Shanghai) Chemical Technology Co., Ltd. |
| Tel: | +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing) |
| Fax: | +86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) |
| WebSite: | www.meryer.com |
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