Fluorescein
CAS2321-07-5
Fluorescein (CAS 2321-07-5, C20H12O5) is supplied by ChemSigma for research and manufacturing, with specification, analytical methods and batch documentation available on request.
- CAS No.
- 2321-07-5
- Formula
- C20H12O5
- Mol. weight
- 332.31 g/mol
- Appearance
- orange-red crystalline powder
Chemical Specifications
Identifiers
| CAS number | 2321-07-5 |
|---|---|
| Product name | Fluorescein |
| Chinese name | 荧光素 |
| Synonyms | Fluorescein(8CI); 3,6-Dihydroxyspiro[xanthene-9,3'-phthalide]; 3',6'-Fluorandiol; Benzoic acid,2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-; C.I. 45350:1; D and C Yellow No. 7; 3',6'-Dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one; C Yellow No. 7; Japan Yellow 201; Ja |
| Chinese synonyms | 2-(6-羟基-3-氧代-3H-呫吨-9-基)苯甲酸; 萤光橙黄; 萤光红; 萤光黄; 萤光素; 荧光酯; 荧光橙红; 荧光黄 |
| Molecular formula | C20H12O5 |
| Molecular weight | 332.31 g/mol |
| EC number | 219-031-8 |
Physical and chemical properties
| Appearance | orange-red crystalline powder |
|---|---|
| Melting Point | 314-316 ( ℃ ) |
| Boiling Point | 232.6 ( ℃ ) |
Applications
<TABLE style="TABLE-LAYOUT: fixed" border=0 cellSpacing=1 cellPadding=2 width="100%" bgColor=#d5d5d5> <TBODY> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>mp </TD> <TD bgColor=#fafafa><FONT color=#0066cc>320 °C(lit.)<BR></FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>storage temp. </TD> <TD bgColor=#ffffff><FONT color=#0066cc>−20°C<BR></FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>Colour Index </TD> <TD bgColor=#fafafa><FONT color=#0066cc>45350</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>Water Solubility </TD> <TD bgColor=#ffffff><FONT color=#0066cc>insoluble</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>Merck </TD> <TD bgColor=#fafafa><FONT color=#0066cc>14,4159</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>BRN </TD> <TD bgColor=#ffffff><FONT color=#0066cc>94324</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>Stability:</TD> <TD bgColor=#fafafa><FONT color=#0066cc>Stable. Combustible. Incompatible with strong oxidizing agents.</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>CAS DataBase Reference</TD> <TD bgColor=#ffffff><A title="2321-07-5(CAS DataBase Reference)" href="CAS_2321-07-5.htm"><FONT color=#0066cc>2321-07-5(CAS DataBase Reference)</FONT></A></TD></TR> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>EPA Substance Registry System</TD> <TD bgColor=#fafafa><A title="Spiro[isobenzofuran- 1(3H),9'-[9H]xanthen]- 3-one, 3',6'-dihydroxy- (2321-07-5)" href="http://iaspub.epa.gov/sor_internet/registry/substreg/searchandretrieve/advancedsearch/search.do?search=?search=&searchCriteria(advancedCriteria)=casNumber=2321-07-5"><FONT color=#0066cc>Spiro[isobenzofuran- 1(3H),9'-[9H]xanthen]- 3-one, 3',6'-dihydroxy- (2321-07-5)</FONT></A></TD></TR></TBODY></TABLE>
Packaging, Storage & Transport
| Available pack sizes | 5kg, 1kg, 500g, 100g, 50g, 10g |
|---|
Read the current safety data sheet before handling. Packaging can be adapted to the order quantity and destination.
Frequently Asked Questions
What is the CAS number of Fluorescein?
The CAS Registry Number of Fluorescein is 2321-07-5. Fluorescein is also known as Fluorescein(8CI); 3,6-Dihydroxyspiro[xanthene-9,3'-phthalide]; 3',6'-Fluorandiol.
What is the molecular formula and molecular weight of Fluorescein?
The molecular formula of Fluorescein is C20H12O5, and its molecular weight is 332.31 g/mol.
What is Fluorescein used for?
<TABLE style="TABLE-LAYOUT: fixed" border=0 cellSpacing=1 cellPadding=2 width="100%" bgColor=#d5d5d5> <TBODY> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>mp </TD> <TD bgColor=#fafafa><FONT color=#0066cc>320 °C(lit.)<BR></FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>storage temp. </TD> <TD bgColor=#ffffff><FONT color=#0066cc>−20°C<BR></FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>Colour Index </TD> <TD bgColor=#fafafa><FONT color=#0066cc>45350</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>Water Solubility </TD> <TD bgColor=#ffffff><FONT color=#0066cc>insoluble</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>Merck </TD> <TD bgColor=#fafafa><FONT color=#0066cc>14,4159</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>BRN </TD> <TD bgColor=#ffffff><FONT color=#0066cc>94324</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>Stability:</TD> <TD bgColor=#fafafa><FONT color=#0066cc>Stable. Combustible. Incompatible with strong oxidizing agents.</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>CAS DataBase Reference</TD> <TD bgColor=#ffffff><A title="2321-07-5(CAS DataBase Reference)" href="CAS_2321-07-5.htm"><FONT color=#0066cc>2321-07-5(CAS DataBase Reference)</FONT></A></TD></TR> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>EPA Substance Registry System</TD> <TD bgColor=#fafafa><A title="Spiro[isobenzofuran- 1(3H),9'-[9H]xanthen]- 3-one, 3',6'-dihydroxy- (2321-07-5)" href="http://iaspub.epa.gov/sor_internet/registry/substreg/searchandretrieve/advancedsearch/search.do?search=?search=&searchCriteria(advancedCriteria)=casNumber=2321-07-5"><FONT color=#0066cc>Spiro[isobenzofuran- 1(3H),9'-[9H]xanthen]- 3-one, 3',6'-dihydroxy- (2321-07-5)</FONT></A></TD></TR></TBODY></TABLE>
How can I request a quotation for Fluorescein?
Send an inquiry for Fluorescein (CAS 2321-07-5) with the required quantity, target specification, destination country and any documentation requirements. ChemSigma will confirm availability, packaging, lead time and price.
Request a Quote for Fluorescein
Tell us the required quantity, target specification, destination country and any documentation requirements. We will confirm availability, packaging, lead time and price.