Fluorescein
Modify Date: 2024-01-02 10:37:38
Fluorescein structure
|
Common Name | Fluorescein | ||
|---|---|---|---|---|
| CAS Number | 2321-07-5 | Molecular Weight | 332.306 | |
| Density | 1.6±0.1 g/cm3 | Boiling Point | 620.8±55.0 °C at 760 mmHg | |
| Molecular Formula | C20H12O5 | Melting Point | 320 °C(lit.) | |
| MSDS | Chinese USA | Flash Point | 232.6±25.0 °C | |
| Symbol |
GHS07 |
Signal Word | Warning | |
Use of FluoresceinFluorescein is a synthetic fluorescent tracer. |
| Name | fluorescein |
|---|---|
| Synonym | More Synonyms |
| Description | Fluorescein is a synthetic fluorescent tracer. |
|---|---|
| Related Catalog | |
| In Vitro | The fluorescein dye is a common fluorescent probe. Its very high molar absorptivity at the wavelength of the argon laser (488 nm), large fluorescence quantum yield and high photostability makes it a very useful and sensitive fluorescent label. Fluorescein is commercially available in many derivatives, such as fluorescein isothiocyanate and fluorescein succinimidyl ester, that can be covalently attached to macromolecules and to amino acids. The labeled molecules can be detected with very high sensitivity which is utilized in, for example, capillary electrophoresis. The emission spectrum of fluorescein overlaps extensively the absorption spectrum of tetramethyl rhodamine, which is a related strongly fluorescent dye, making this pair very suitable for energy transfer experiments to determine distances within and between labeled macromolecules. Fluorescein in aqueous solution occurs in cationic, neutral, anionic and dianionic forms making its absorption and fluoresence properties strongly pH dependent[1]. |
| References |
| Density | 1.6±0.1 g/cm3 |
|---|---|
| Boiling Point | 620.8±55.0 °C at 760 mmHg |
| Melting Point | 320 °C(lit.) |
| Molecular Formula | C20H12O5 |
| Molecular Weight | 332.306 |
| Flash Point | 232.6±25.0 °C |
| Exact Mass | 332.068481 |
| PSA | 87.74000 |
| LogP | 2.98 |
| Vapour Pressure | 0.0±1.9 mmHg at 25°C |
| Index of Refraction | 1.792 |
| Storage condition | −20°C |
| Water Solubility | insoluble |
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATAACUTE TOXICITY DATA
MUTATION DATA
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| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H319 |
| Precautionary Statements | P305 + P351 + P338 |
| Personal Protective Equipment | Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter |
| Hazard Codes | Xi:Irritant; |
| Risk Phrases | R36;R43 |
| Safety Phrases | S22-S24/25-S37/39-S26 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| RTECS | LM5075000 |
| Packaging Group | I; II; III |
| HS Code | 3204200000 |
| Precursor 8 | |
|---|---|
| DownStream 9 | |
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CAS#:65-85-0| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: Fluorescein
- Price: ￥778.0/500g ￥218.0/100g ￥78.0/25g ￥1288.0/1kg
- Purity: 90.0%
- Delivery: Inquiry
- Contact: Liu jia
- Email: 2130147988@qq.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: Fluorescein
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Delivery: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
- Henan Tianfu Chemical Co., Ltd.
- China
- Product Name: fluorescein
- Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
- Purity: 99.0%
- Delivery: Inquiry
- Contact: Anson
- Email: info@tianfuchem.com
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Price: $66/10mM*1mLinDMSO
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