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7-Ethoxy-4-methylcoumarin
7-Ethoxy-4-methylcoumarin
ChemFaces products have been cited in many studies from excellent and top scientific journals
Product Name 7-Ethoxy-4-methylcoumarin
Price: $30 / 20mg
CAS No.: 87-05-8
Catalog No.: CFN70211
Molecular Formula: C12H12O3
Molecular Weight: 204.2 g/mol
Purity: >=98%
Type of Compound: Coumarins
Physical Desc.: Powder
Source:
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS
Similar structural: Comparison
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Size /Price /Stock 10 mM * 1 mL in DMSO / Inquiry / In-stock
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Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
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Description: Reference standards.
7-Ethoxy-4-methylcoumarin Description
Source:
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Recently, ChemFaces products have been cited in many studies from excellent and top scientific journals

Cell. 2018 Jan 11;172(1-2):249-261.e12.
doi: 10.1016/j.cell.2017.12.019.
IF=36.216(2019)

PMID: 29328914

Cell Metab. 2020 Mar 3;31(3):534-548.e5.
doi: 10.1016/j.cmet.2020.01.002.
IF=22.415(2019)

PMID: 32004475

Mol Cell. 2017 Nov 16;68(4):673-685.e6.
doi: 10.1016/j.molcel.2017.10.022.
IF=14.548(2019)

PMID: 29149595

ACS Nano. 2018 Apr 24;12(4): 3385-3396.
doi: 10.1021/acsnano.7b08969.
IF=13.903(2019)

PMID: 29553709

Nature Plants. 2016 Dec 22;3: 16206.
doi: 10.1038/nplants.2016.205.
IF=13.297(2019)

PMID: 28005066

Sci Adv. 2018 Oct 24;4(10): eaat6994.
doi: 10.1126/sciadv.aat6994.
IF=12.804(2019)

PMID: 30417089
Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 4.8972 mL 24.4858 mL 48.9716 mL 97.9432 mL 122.429 mL
5 mM 0.9794 mL 4.8972 mL 9.7943 mL 19.5886 mL 24.4858 mL
10 mM 0.4897 mL 2.4486 mL 4.8972 mL 9.7943 mL 12.2429 mL
50 mM 0.0979 mL 0.4897 mL 0.9794 mL 1.9589 mL 2.4486 mL
100 mM 0.049 mL 0.2449 mL 0.4897 mL 0.9794 mL 1.2243 mL
* Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
Protocol
Structure Identification:
Journal of Instrumental Analysis, 2016.
Determination of Coumarin Allergen and Its Derivatives in Cosmetics by HPLC and Their Verification by HPLC-MS/MS.[Reference: WebLink]

METHODS AND RESULTS:
A high performance liquid chromatographic( HPLC) method was developed for the determination of coumarin allergen and its seven derivatives, including dihydrocoumarin,7-methoxycoumarin,7-methylcoumarin,7-Ethoxy-4-methylcoumarin, cyclocoumarol, dicoumarol and acenocoumarol in cosmetics. Cosmetic samples were ultrasonically extracted with 0. 1 mol / L aqueous sodium hydroxide- acetonitrile( 1∶9). The extract was centrifuged,and filtered by microporous membrane. The chromatographic separation for the analytes was achieved on a ZORBAX SB- C18( 250 mm × 4. 6 mm,5 μm) column. Gradient elution was performed using 0. 05 mol / L aqueous ammonium acetate solution( containing 0. 25% acetic acid) and acetonitrile. The quantification was carried out by the external standard method,and the suspected samples were further verified by high performance liquid chromatography- tandem mass spectrometry( HPLC- MS / MS). The experimental results indicated that good linearities were observed over a certain concentration range with correlation coefficients better than 0. 999 6,and the limits of quantitation( LOQs) were between 8 and 20 mg / kg. The average recoveries for the analytes at three spiked levels ranged from 84. 6% to 100. 7% with relative standard deviations( RSDs) of 0. 8%- 9. 7%.
CONCLUSIONS:
The proposed method is accurate,robust and specific,and could provide scientific basis and a technical support for the inspection and quality control of cosmetics.
Momordicoside P

Catalog No: CFN92308
CAS No: 1011726-62-7
Price: $ / mg
Bornyl acetate

Catalog No: CFN90494
CAS No: 5655-61-8
Price: $30/20mg
3-Butylidenephthalide

Catalog No: CFN99588
CAS No: 551-08-6
Price: $40/20mg
1-Deoxynojirimycin

Catalog No: CFN99933
CAS No: 19130-96-2
Price: $30/20mg
Cyclo(Pro-Leu)

Catalog No: CFN90281
CAS No: 5654-86-4
Price: $238/10mg
Salicylic acid

Catalog No: CFN93274
CAS No: 69-72-7
Price: $30/20mg
3-Isomangostin

Catalog No: CFN99724
CAS No: 19275-46-8
Price: $168/10mg
Angeloylgomisin H

Catalog No: CFN90710
CAS No: 66056-22-2
Price: $238/10mg
Syringic acid

Catalog No: CFN98884
CAS No: 530-57-4
Price: $30/20mg
Kaempferide

Catalog No: CFN98782
CAS No: 491-54-3
Price: $40/20mg
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