FDG
- CAS No.
- 17817-20-8
- Chemical Name:
- FDG
- Synonyms
- FDG;UNG3;HMUDG;Fluorescein Impurity 21;fluorescein-digalactoside;FLUORESCEIN DI-BETA-D-GALACTOSIDE;Fluorescein di-β-D-galactopyranoside;fluorescein di(β-d-galactopyranoside);Fluoresceindi--D-Galactopyranside(FDG);FLUORESCEIN DI-(B-D-GALACTOPYRANOSIDE)
- CBNumber:
- CB2422505
- Molecular Formula:
- C32H32O15
- Molecular Weight:
- 656.59
- MDL Number:
- MFCD00077344
- MOL File:
- 17817-20-8.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Fluorescein di(β-D-galactopyranoside) | F2756 | 1mg | $97.1 |
| Fluorescein di(β-D-galactopyranoside) | F2756 | 5mg | $291.45 |
| Fluorescein di-β-Galactopyranoside | 26860 | 5mg | $194 |
| Fluorescein di(β-D-galactopyranoside) | F2756 | 25mg | $570 |
| Fluorescein di(β-D-galactopyranoside) | F537505 | 50mg | $495 |
| More product size | |||
| Melting point | 200-203 °C (dec.) |
|---|---|
| Boiling point | 974.8±65.0 °C(Predicted) |
| Density | 1.74±0.1 g/cm3(Predicted) |
| storage temp. | -20°C |
| solubility | DMSO: soluble |
| form | A solid |
| pka | 12.44±0.70(Predicted) |
| color | Yellow to orange |
| InChIKey | ZTOBILYWTYHOJB-QDUIOQOANA-N |
| SMILES | OC[C@H]1O[C@@H](Oc2ccc3c(Oc4cc(O[C@@H]5O[C@H](CO)[C@H](O)[C@H](O)[C@H]5O)ccc4C36OC(=O)c7ccccc67)c2)[C@H](O)[C@@H](O)[C@H]1O |
| UNSPSC Code | 12352201 |
| NACRES | NC.07 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P280-P261 |
| PPE | Eyeshields, Gloves, type N95 (US) |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
| F | 8 |
| HS Code | 32129000 |
| Storage Class | 11 - Combustible Solids |
FDG price More Price(15)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | F2756 | Fluorescein di(β-D-galactopyranoside) | 17817-20-8 | 1mg | $97.1 | 2025-07-31 | Buy |
| Sigma-Aldrich | F2756 | Fluorescein di(β-D-galactopyranoside) | 17817-20-8 | 5mg | $291.45 | 2025-07-31 | Buy |
| Cayman Chemical | 26860 | Fluorescein di-β-Galactopyranoside | 17817-20-8 | 5mg | $194 | 2024-03-01 | Buy |
| Sigma-Aldrich | F2756 | Fluorescein di(β-D-galactopyranoside) | 17817-20-8 | 25mg | $570 | 2025-07-31 | Buy |
| TRC | F537505 | Fluorescein di(β-D-galactopyranoside) | 17817-20-8 | 50mg | $495 | 2021-12-16 | Buy |
FDG Chemical Properties,Uses,Production
Uses
Ultra sensitive fluorogenic substrate for ?-galactosidase, used in live cell and tissue (in vivo and in vitro) assays. This fluorescent substrate reagent could be used for monitoring kinetics of hydrolysis.
Uses
For detecting Glycosidases and could be used in ELISAs, FDG substrate has also been used for identifying lacZ-positive cells with fluorescence microscopy and flow cytometry
Uses
Fluorescein di(β-D-galactopyranoside) (FDG) has been used for the detection of gene expression via FACS (fluorescence-activated cell sorting).
Biochem/physiol Actions
Fluorescein di (β-D-galactopyranoside) (FDG) results in fluorescence after being hydrolyzed to fluorescein by β-galactosidase. It gives fluorescence proportional to the enzymatic activity. This molecule is mainly required for the detection of gene expression in transfected cells when using β-galactosidase (Lac Z) as a reporter gene.
FDG Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29837 | 58 |
| BOC Sciences | +1-631-485-4226 | inquiry@bocsci.com | United States | 19552 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +17819995354 | marketing@targetmol.com | United States | 32470 | 58 |
| Wuhan Fortuna Chemical Co., Ltd | +86-027-59207850 +86-13986145403; | info@fortunachem.com | China | 6009 | 58 |
| Hangzhou MolCore BioPharmatech Co.,Ltd. | +86-057181025280; +8617767106207 | sales@molcore.com | China | 49734 | 58 |
| Watson Biotechnology Co.,Ltd | +86-18186686046 +86-18186686046; | sales01@watsonbiotech.cn | China | 5742 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39927 | 58 |
| ChemeGen(Shanghai) Biotechnology Co.,Ltd. | 18818260767 | sales@chemegen.com | China | 11218 | 58 |
| Beijing Biocreative Technology Co., Ltd. | 15522676233 | 3007606172@qq.com | China | 1248 | 58 |
View Lastest Price from FDG manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-01-14 | Fluorescein di(β-D-galactopyranoside)
17817-20-8
|
US $0.00 / G | 10G | 98%min | 30kg/month | WUHAN FORTUNA CHEMICAL CO., LTD | |
 |
2026-01-05 | Fluorescein di-beta-D-galactopyranoside
17817-20-8
|
US $396.00-71.00 / mg | 99.02% | 10g | TargetMol Chemicals Inc. | ||
 |
2019-07-06 | FDG
17817-20-8
|
US $1.00 / kg | 1kg | 98% | 100KG | Career Henan Chemical Co |
-
- Fluorescein di(β-D-galactopyranoside)
17817-20-8
- US $0.00 / G
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Fluorescein di-beta-D-galactopyranoside
17817-20-8
- US $396.00-71.00 / mg
- 99.02%
- TargetMol Chemicals Inc.
-
- FDG
17817-20-8
- US $1.00 / kg
- 98%
- Career Henan Chemical Co
