4-Methylumbelliferone CAS 90-33-5

CAS: 90-33-5

Molecular Formula: C10H8O3

Molecular Weight: 176.17

EINECS: 201-986-7

Synonyms: TIMTEC-BB SBB009085; UMBELLIFERONE 47; LABOTEST-BB; LT01272564; COUMARIN 456; COUMARIN 4; HYMECROMONE; IFLAB-BB F1918-0038; AURORA KA-3734; B-METHYLUMBELLIFERONE; BETA-METHYLUMBELLIFERONE

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What is 4-Methylumbelliferone CAS 90-33-5?

4-Methylobelliferone needle shaped crystals. Melting point 185-186 ℃ (194-195 ℃), soluble in ethanol, acetic acid, alkaline solutions, and ammonia, slightly soluble in hot water, ether, and chloroform. Blue fluorescence when reacting with concentrated sulfuric acid

Specification

Item	Specification
MW	176.17
Melting point	188.5-190 °C(lit.)
Purity	slightly soluble
SOLUBLE	Soluble in water.
Storage conditions	2-8°C
pKa	7.79(at 25℃)

Application

4-Methylobelliferone is a choleretic drug and an intermediate of the anti allergic drug sodium succinate. 4-Methylobelliferone laser dye, standard for fluorescence determination of enzyme activity. An indicator for measuring nitric acid.