C10H8O3
176.17 g/mol
APIWarning
4-methylumbelliferone
CAS90-33-5EC201-986-7
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
4-Methylumbelliferone is a chemical compound that crystallizes in the monoclinic space group P2(1)/c, as determined by single-crystal X-ray diffraction. It is commonly used as an analytical reagent and fluorescent indicator, and also serves as an antispasmodic drug substance.
analytical reagentfluorescent indicatorantispasmodic drug substance
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Aminacrine
CAS90-45-9
pharmaceutical raw material
ReferenceSame Category
Pheneturide
CAS90-49-3
pharmaceutical raw material
ReferenceSame Category
(+)-pseudoephedrine
CAS90-82-4
pharmaceutical raw material
ReferenceSame Category
Diethylcarbamazine
CAS90-89-1
pharmaceutical raw material
Referencesame scaffold
7-amino-4-methylcoumarin
CAS26093-31-2
laser dye
Referencesame scaffold
Diethylaminomethylcoumarin
CAS91-44-1
Optical brightener and laser dye
Referencesame scaffold
Coumarin
CAS91-64-5
flavor and fragrance agent
Referencesame scaffold
6-methylcoumarin
CAS92-48-8
Flavor and fragrance ingredient
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-methylumbelliferone (CAS 90-33-5) is 2932.20.
HS code (international, 6-digit)
2932.20
EU CN code (8-digit)
2932 20 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
7-hydroxy-4-methylchromen-2-one
InChIKey
HSHNITRMYYLLCV-UHFFFAOYSA-N
SMILES
CC1=CC(=O)OC2=C1C=CC(=C2)O
Synonyms (70)
- 4-MU
- M-5410
- M-5421
- Himecromona [INN-Spanish]
- Hymecromone (JP18/USAN/INN)
- Hymecromonum [INN-Latin]
- 4-Methyl-7-hydroxycoumarin
- 4-Methyl-7-hydroxyl Coumarin
- 4-Methylumbelliferon
- 4-Methylumbelliferon [Czech]
- 4-Methylumbelliferone (4-MU)
- 4-methyl-7-hydroxy-cumarin
- 4-methylumbelliferone
- 7-hydroxy-4-methyl coumarine
- 7-hydroxy-4-methyl-2-coumarin
- 7-hydroxy-4-methyl-coumarin
- Bilcolic
- Bilicante
- Biliton H
- Cantabilin
- Cantabiline
- Cantabiline (TN)
- Cholestil
- Cholonerton
- Cholspasmin
- Coumarin 4
- Coumarin 456
- Coumarin derivative, 3b
- Coumarin, 7-hydroxy-4-methyl-
- Crodimon
- Cumarote-C
- Eurogae
- Eurogale
- HYMECROMONE [MART.]
- Himecol
- Himecromona
- Hymechrome
- Hymechromone
- Hymecromon
- Hymecromone
- Hymecromone CRS
- Hymecromonum
- Imechromone
- Imecromone
- LM 94
- METHYLUMBELLIFERONE, BETA
- Medilla
- Mendiaxon
- Omega 127
- Pilot 447
- Resocyanine
- Umbelliferone, 4-methyl-
- beta-Methylumbelliferone
- ss-Methylumbelliferone
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