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CAS RN: 88404-25-5 | Product Number: A5570

4-Bromomethyl-6,7-dimethoxycoumarin [for HPLC Labeling]


Purity: >98.0%(HPLC)
Synonyms:
Documents:
100MG
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Product Number A5570
Purity / Analysis Method >98.0%(HPLC)
Molecular Formula / Molecular Weight C__1__2H__1__1BrO__4 = 299.12 
Physical State (20 deg.C) Solid
Storage Temperature 0-10°C
Store Under Inert Gas Store under inert gas
Condition to Avoid Moisture Sensitive,Heat Sensitive
Packaging and Container 1G-Glass Bottle with Plastic Insert (View image)
CAS RN 88404-25-5
Reaxys Registry Number 4750487
PubChem Substance ID 87563187
MDL Number

MFCD00011570

Specifications
Appearance Light yellow to Amber to Dark green powder to crystal
Purity(HPLC) min. 98.0 area%
Melting point 211.0 to 216.0 °C
Effect test of HPLC derivatization Effective as labeling agent for Linoleic Acid , Oleic Acid
Properties (reference)
Melting Point 214 °C
Solubility in water Insoluble
GHS
Pictogram Pictogram
Signal Word Danger
Hazard Statements H314 : Causes severe skin burns and eye damage.
H290 : May be corrosive to metals.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P260 : Do not breathe dusts or mists.
P234 : Keep only in original container.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P390 : Absorb spillage to prevent material damage.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P363 : Wash contaminated clothing before reuse.
P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor.
P406 : Store in corrosive resistant container with a resistant inner liner.
P405 : Store locked up.
Related Laws:
Transport Information:
UN Number (DOT-AIR) UN3261
Class (DOT-AIR) 8
Packing Group (TCI-A) II
HS Number 2932.20.4500
Application
HPLC Labeling Reagent for Carboxylic Acids

The compound 1 is an HPLC fluorescence labeling reagent, which has a bromomethyl group, and easily reacts with a carboxyl group to form the corresponding ester in the presence of a base. The resultant ester is stable enough to reach the detector without any decomposition under reversed phase HPLC. Furthermore, it has a characteristic fluorescence based on a coumarin skeleton, thus an excellent chromatogram can be obtained by fluorescence detection at the excitation and emission wavelengths of 340 nm and 425 nm, respectively.

Application example:
[Fatty acids] 1)
Dissolve 0.01 g of the sample in 0.1 mL of acetone. The solution is neutralized by the addition of 10% KOH / methanol. To the resultant solution, add an acetone solution with an excess amount of labeling reagent 1, 18-crown 6-ether, and potassium carbonate. Close the cap of the reaction vessel and incubate the mixture at 70 °C for 30 min. Cool to room temperature and use it as an HPLC sample solution.
[Others]
Prostaglandins1), bile acids1), proteins2), nucleic acids3)

References


PubMed Literature


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