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4-Methylumbelliferone structure
Chemical Name:
BMU;lm94;4-MU;LM 94;Himecol;Medilla;CantabbY;Bilcolic;Crodimon;Eurogale
Molecular Formula:
Formula Weight:
MOL File:

4-Methylumbelliferone Properties

Melting point:
188.5-190 °C(lit.)
Boiling point:
267.77°C (rough estimate)
1.1958 (rough estimate)
refractive index 
1.5036 (estimate)
storage temp. 
-20°C Freezer
Solubility Practically insoluble in water; slightly soluble in ethanol, ether,chloroform; soluble inmethanol
7.79(at 25℃)
Crystalline Powder
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
221nm, 251nm, 322nm
Stable. Combustible. Incompatible with strong oxidizing agents.
Major Application
color filter, electroluminescent displays, document security processes, lasers, integrated circuits, liquid crystal displays, surface brightening composition, oil products, teeth whitening agent, lysosomal enzyme assay, substrate for lipase, determining protein-protein-interactions in living cells, Antitrypanosomal, antileishmanial, anticancer, antiHIV, antimalarial, antibacterial, antifungal
CAS DataBase Reference
90-33-5(CAS DataBase Reference)
NIST Chemistry Reference
Coumarin, 7-hydroxy-4-methyl-(90-33-5)
EPA Substance Registry System
2H-1-Benzopyran- 2-one, 7-hydroxy-4-methyl-(90-33-5)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi,Xn
Risk Statements  36/37/38-20/21/22
Safety Statements  26-37/39-36
WGK Germany  2
RTECS  GN7000000
Hazard Note  Irritant
HS Code  29329990
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

4-Methylumbelliferone price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich M1381 4-Methylumbelliferone ≥98% 90-33-5 25g $29.1 2018-11-13 Buy
Sigma-Aldrich M1381 4-Methylumbelliferone ≥98% 90-33-5 100g $55.4 2018-11-13 Buy
TCI Chemical M0453 4-Methylumbelliferone >98.0%(T) 90-33-5 25g $24 2018-11-22 Buy
TCI Chemical M0453 4-Methylumbelliferone >98.0%(T) 90-33-5 100g $63 2018-11-22 Buy
Alfa Aesar A10337 4-Methylumbelliferone, 97% 90-33-5 250g $95.7 2018-11-13 Buy

4-Methylumbelliferone Chemical Properties,Uses,Production

Chemical Properties

Off-White to Yellow Crystals


Standard for the fluorometric determination of enzyme activity. Highly fluorescent in alkaline solution. Fluorescence: max Abs. l = 360nm, max. Em. l = 449nm; pH > 9


choloretic, spasmolytic, sunscreen


Analytical reagent.


ChEBI: A hydroxycoumarin that is umbelliferone substituted by a methyl group at position 4.

General Description

Colorless crystals. Insoluble in water.

Air & Water Reactions

Insoluble in water.

Fire Hazard

Flash point data for 4-Methylumbelliferone are not available. 4-Methylumbelliferone is probably combustible.

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Purify it by recrystallisation from EtOH. It is very slightly soluble in cold H2O (solubility at 37o is 0.22%), slightly soluble in Et2O and CHCl3, but soluble in MeOH and AcOH. It has a blue fluorescence in aqueous EtOH and has UV: 221, max 251 and 322.5nm (MeOH). The IR has 3077 br, 1667, 1592, 1385, 1267, 1156, 1130 and 1066 cm-1.max The acetate has m 153-154o. [Woods & Sapp J Org Chem 27 3703 1962, Beilstein 18 III/IV 332, 18/1 V 439.]

4-Methylumbelliferone Preparation Products And Raw materials

Raw materials

Preparation Products

4-Methylumbelliferone Suppliers

Global( 317)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 CHINA 3203 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32457 55
Xiamen AmoyChem Co., Ltd
+86 (0)592-605 1114 CHINA 6374 58
Chemwill Asia Co.,Ltd.
86-21-51861608;;; CHINA 24001 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254 CHINA 20095 58
Haihang Industry Co.,Ltd
+86 531 8582 1093 CHINA 4669 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038 CHINA 3623 58
career henan chemical co
+86-371-86658258 CHINA 19923 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40277 62

View Lastest Price from 4-Methylumbelliferone manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-07 4-Methylumbelliferone
US $1.00 / KG 1KG 98% 20KG career henan chemical co

4-Methylumbelliferone Spectrum

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