4-Methylumbelliferone CAS 90-33-5

4-Methylumbelliferone Basic information

Product Name:

4-Methylumbelliferone

CAS:

90-33-5

MF:

C10H8O3

MW:

176.17

EINECS:

201-986-7

Mol File:

90-33-5.mol

4-Methylumbelliferone Chemical Properties

Melting point

188.5-190 °C(lit.)

Boiling point

267.77°C (rough estimate)

density

1.1958 (rough estimate)

refractive index

1.5036 (estimate)

storage temp.

2-8°C

solubility

Practically insoluble in water; slightly soluble in ethanol, ether,chloroform; soluble inmethanol

pka

7.79(at 25℃)

form

Crystalline Powder

color

off-white to yellow

PH Range

Green 1 uorescent (0.0) to weak blue 1 uorescent (2.0);Weak blue 1 uorescent (6.5) blue 1 uorescent (8.0)

Water Solubility

slightly soluble

λmax

221nm, 251nm, 322nm

Merck

144,854

BRN

142217

Stability:

Stable. Combustible. Incompatible with strong oxidizing agents.

InChI

1S/C10H8O3/c1-6-4-10(12)13-9-5-7(11)2-3-8(6)9/h2-5,11H,1H3

InChIKey

HSHNITRMYYLLCV-UHFFFAOYSA-N

SMILES

CC1=CC(=O)Oc2cc(O)ccc12

LogP

2.370 (est)

CAS DataBase Reference

90-33-5(CAS DataBase Reference)

NIST Chemistry Reference

Coumarin, 7-hydroxy-4-methyl-(90-33-5)

EPA Substance Registry System

4-Methylumbelliferone (90-33-5)