Regaloside B is a phenylpropanoid extracted from Lilium longiflorum. Regaloside B can inhibit the expression of iNOS and COX-2 and exhibits anti-inflammatory effect.

Physicochemical Properties

Molecular Formula	C20H26O11
Molecular Weight	442.41
Exact Mass	442.148
CAS #	114420-67-6
PubChem CID	5459143
Appearance	White to off-white solid powder
Density	1.46g/cm3
Boiling Point	727.5ºC at 760mmHg
Flash Point	253.8ºC
Vapour Pressure	3.23E-22mmHg at 25°C
Index of Refraction	1.606
LogP	-0.5
Hydrogen Bond Donor Count	5
Hydrogen Bond Acceptor Count	11
Rotatable Bond Count	11
Heavy Atom Count	31
Complexity	602
Defined Atom Stereocenter Count	1
SMILES	CC(=O)OC[C@@H](COC(=O)/C=C/C1=CC=C(C=C1)O)OC2C(C(C(C(O2)CO)O)O)O
InChi Key	YQKQOLPNKNHLBO-KRJCNZRASA-N
InChi Code	InChI=1S/C20H26O11/c1-11(22)28-9-14(30-20-19(27)18(26)17(25)15(8-21)31-20)10-29-16(24)7-4-12-2-5-13(23)6-3-12/h2-7,14-15,17-21,23,25-27H,8-10H2,1H3/b7-4+/t14-,15?,17?,18?,19?,20?/m0/s1
Chemical Name	[(2S)-3-acetyloxy-2-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxypropyl] (E)-3-(4-hydroxyphenyl)prop-2-enoate
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References	[1]. Phenylpropanoids from Lilium Asiatic hybrid flowers and their anti-inflammatory activities. Applied Biological Chemistry. 2017; 60: 527–533. [2]. Purification of Phenylpropanoids from the Scaly Bulbs of Lilium Longiflorum by CPC and Determination of Their DPP-IV Inhibitory Potentials. ACS Omega. 2020 Feb 20; 5(8): 4050-4057.
Additional Infomation	Regaloside B has been reported in Lilium auratum and Lilium brownii with data available.

Solubility Data

Solubility (In Vitro)

DMSO: 100 mg/mL (226.03 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (5.65 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (5.65 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 3: ≥ 2.5 mg/mL (5.65 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.2603 mL	11.3017 mL	22.6035 mL
	5 mM	0.4521 mL	2.2603 mL	4.5207 mL
	10 mM	0.2260 mL	1.1302 mL	2.2603 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.