Fluorescein di(β-D-galactopyranoside)
Fluorescein di(β-D-galactopyranoside) (CAS: 17817-20-8; Formula: C32H32O15; MW: 656.59) is a fluorogenic substrate primarily used in biochemical research. This compound is cleaved by the enzyme β-galactosidase, releasing fluorescent fluorescein. It is essential for detecting and quantifying β-galactosidase activity in various biological assays, including molecular biology, proteomics, and glycobiology.
- IUPAC
- FDG

Enzyme Activity Detection
Utilised as a specific substrate for β-galactosidase, enabling the quantitative measurement of enzyme activity in biological samples. This is crucial for various research applications.
Reporter Gene Assays
Employed in molecular biology to monitor gene expression where the lacZ gene is used as a reporter. The release of fluorescence indicates successful gene transcription and translation.
Proteomics Research
Applied in proteomic studies to identify and analyse β-galactosidase activity, aiding in the understanding of protein function and post-translational modifications.
Glycobiology Studies
Serves as a valuable tool in glycobiology research for studying glycosidase activity and carbohydrate metabolism within biological systems.
| Molecular weight | 656.59 |
|---|---|
| Empirical formula | C32H32O15 |
| Storage temperature | −20°C |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Fluorescein di(β-D-galactopyranoside) used for?
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Fluorescein di(β-D-galactopyranoside) is a fluorogenic substrate used for detecting and quantifying β-galactosidase activity in biochemical research, reporter gene assays, proteomics, and glycobiology.
What is the CAS number and chemical formula for Fluorescein di(β-D-galactopyranoside)?
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The CAS number is 17817-20-8, and the chemical formula is C32H32O15.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Fluorescein di(β-D-galactopyranoside) typically as a research-grade chemical. We do not represent this product as USP, BP, or EP. Please refer to the product specifications for detailed purity information.
How should Fluorescein di(β-D-galactopyranoside) be handled safely?
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Handle with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter may be required. The product has a WGK Germany rating of 3, indicating it is hazardous to water.
How is this product packed, shipped, and exported?
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Tech Serve Solutions offers expert packing, shipping, and global export services for all our chemical products, adhering to international regulations.
How can I request a sample or quote for Fluorescein di(β-D-galactopyranoside)?
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To request a sample or a detailed quote, please contact our sales team through the website or by phone, providing the product name and CAS number (17817-20-8).
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