valproicacid (VPA) is a broad-spectrum antiepileptic drug in clinical first-line, which has a good effect on various types of epilepsy and concurrent epileptoid convulsions. The metabolism of valproic acid has large individual differences, and its therapeutic window is narrow, and it interacts with a variety of drugs, which often requires therapeutic monitoring. The effective blood concentration range is 50-100 μg/mL. As early as 1882, Professor Beverley Burton of France synthesized valproic acid in his laboratory. Valproic acid is a colorless liquid at room temperature, and since pharmacological studies have shown that this compound has no pharmacological effect, valproic acid has always been a solvent commonly used in the laboratory. If the drug is insoluble to water, valproic acid will be used instead of the solvent to dissolve the drug.
Colorless liquid. Boiling point 221℃, relative density 1.1 (24.5/4℃), refractive index 1.4250, flash point 111℃. Insoluble in water.
The product is salt with sodium hydroxide solution to obtain a broad spectrum anti-epileptic melting drug sodium valproate, also known as anti-epilepsy.
- It can also be used as a modifier to improve the properties of polyesters, plastics and coatings.
Tha mòran fhactaraidhean àrd-inbhe againn le co-obrachadh domhainn, a bheir dhut toraidhean àrd-inbhe agus prìsean farpaiseach. Agus is urrainn dhuinn cuideachd lasachaidhean a thoirt seachad airson mòr-cheannach. Tha an ùine lìbhrigidh timcheall air 3-20 latha às deidh dearbhadh pàighidh.
Molecular Formula | C8H16O2 |
Molar Mass | 144.21 |
Density | 0.9 g/mL at 25 °C (lit.) |
Rubha leaghaidh | -21.25°C (estimate) |
Boling Point | 220 °C (lit.) |
Flash Point | 232°F |
Solubility uisge | slightly soluble |
Solubility | H2O: slightly soluble |
Vapor Presure | 0.01 hPa (20 °C) |
Coltas | Colorless liquid |
Color | Clear colorless to pale yellow |
Merck | 14,9913 |
BRN | 1750447 |
pKa | 4.6(at 25℃) |
Storage Condition | Store below +30°C. |
Explosive Limit | 1%(V) |
Refractive Index | n20/D 1.425(lit.) |
MDL | MFCD00002672 |
Physical and Chemical Properties | Density: 0.92 Boiling Point: 220°C refractive index: 1.424-1.426 flash point: 111°C water-soluble clear solution |
Cleachd | Used as a pharmaceutical Intermediate |
1. An e factaraidh no companaidh malairt a th 'annad?
Tha sinn nar companaidh a tha ag amalachadh gnìomhachas agus malairt, a’ toirt seachad seirbheis aon-stad. Dh’ fhaodadh gabhail ri OEM.
2. A bheil thu a 'toirt seachad samples? A bheil e an-asgaidh no a bharrachd?
Saor an-asgaidh samples.The shampall cìs bathair feumar pàigheadh le ur taobh.
3. A bheil teisteanasan sam bith agad co-cheangailte ri smachd càileachd?
Teisteanas ISO 9001: 2008 gus dèanamh cinnteach à càileachd.
4. Dè a bu chòir dhomh a thoirt seachad gus luachan fhaighinn?
Bidh Pls ag innse dhuinn mun t-seòrsa toraidh a dh’ fheumas tu, meud òrduigh, seòladh agus riatanasan sònraichte. Thèid an luachan a dhèanamh airson do iomradh ann an ùine.
5. Dè an seòrsa dòigh pàighidh as fheàrr leat? Dè an seòrsa teirmean ris an tèid gabhail?
Cumhachan Lìbhrigeadh ris an deach gabhail: FOB, CFR, CIF, EXW;
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Seòrsa Pàighidh ris an deach gabhail: T / T, Western Union; Paypal, Dearbhadh Malairt.
Cànan air a labhairt: Beurla.
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