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90-33-5 - 4-Methylumbelliferone, 97% - 7-Hydroxy-4-methylcoumarin - Hymecromone - A10337 - Alfa Aesar

A10337 4-Methylumbelliferone, 97%

CAS-Nummer
90-33-5
Synonyme
7-Hydroxy-4-methylcoumarin
Hymecromone

Größe Preis ($) Menge Verfügbarkeit
50g 26,06
250g 93,32
1000g 279,13
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4-Methylumbelliferone, 97%

MDL
MFCD00006866
EINECS
201-986-7

Chemische Eigenschaften

Formel
C10H8O3
Molmasse
176.17
Schmelzpunkt
186-191°
Löslichkeit
Soluble in alcohol. Insoluble in cold water. Soluble in acetic acid, alkali and ammonium hydroxide. Slightly soluble in hot water, chloroform and diethyl ether.

Anwendungen

4-Methylumbelliferone is used in the determination of nitric acid and as a standard for fluorometric determination of enzyme activity. It is also used in bile therapy.

Bemerkungen

Store in a cool place. Incompatible with strong bases and strong oxidizing agents.

Literaturverweise

Standard for fluorimetric determination of enzyme activity: Anal. Biochem., 54, 40; 55, 85 (1973).

/n

Franco, P. G.; Perez, M. J.; Aranda, C.; Adamo, A.; Silvestroff, L. Improving arylsulfatase activity determination in dried blood spots: Screening and diagnostic approaches for Maroteaux-Lamy syndrome (MPS VI). Clin. Chim. Acta 2015, 446, 86-92.

Kłucinska, K.; Jurczakowski, R.; Maksymiuk, K.; Michalska, A. Ultrasensitive 4-methylumbelliferone fluorimetric determination of water contents in aprotic solvents. Talanta 2015, 132, 392-397.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Sicherheitshinweise: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,4854
Beilstein
142217
Harmonized Tariff Code
2932.20
TSCA
Yes
RTECS
GN7000000

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