CAS No.90-33-5,4-Methylumbelliferone Suppliers,MSDS download

Products Categories

Pharmaceutical (178)
Others (41)
Organic Chemicals (35)
Plant Extract (27)
Reagent (14)
Materials (4)
Basic Inorganic Chemicals (2)

Basic Information

Molecular Structure:
CAS No.:	90-33-5
Name:	4-Methylumbelliferone
Article Data:	217

Formula:	C₁₀H₈O₃
Molecular Weight:	176.18
Synonyms:	Coumarin,7-hydroxy-4-methyl- (8CI);Umbelliferone, 4-methyl- (6CI);4-MU;4-Methyl-7-hydroxycoumarin;7-Hydroxy-4-methyl-2-chromenone;7-Hydroxy-4-methyl-2-oxo-3-chromene;7-Hydroxy-4-methyl-2H-1-benzopyran-2-one;7-Hydroxy-4-methyl-2H-chromen-2-one;7-Hydroxy-4-methylcoumarin;Bilcolic;Bilicante;Biliton H;Cantabilin;Cantabiline;Cholestil;Cholonerton;Cholspasmin;Coumarin 4;Cumarote C;Eurogale;Hymecromone;Imecromone;Medilla;Mendiaxon;NSC 9408;Omega127;Pilot 447;
EINECS:	201-986-7
Density:	1.319 g/cm³
Melting Point:	188.5-190 °C(lit.)
Boiling Point:	377.4 °C at 760 mmHg
Flash Point:	174.5 °C
Solubility:	slightly soluble in water
Appearance:	off-white to yellow crystals
Hazard Symbols:	Xi,Xn
Risk Codes:	36/37/38-20/21/22
Safety:	26-37/39-36
PSA:	50.44000
LogP:	1.80700

Total:196 Page 1 of 6 1 2 3 4 5 6 Next>>

Post a RFQ

Cas No.:

Product Name:

Quantity:

Email:

Company name:

Valid Period:

Detailed Requirements:

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

What can I do for you?
Get Best Price

Get Best Price for 90-33-5

Chemistry

Detail of 4-METHYL-7-HYDROXYCOUMARIN (90-33-5).
Molecular Structure:

Name:4-METHYL-7-HYDROXYCOUMARIN
CAS Number:90-33-5
Molecular Formula:C₁₀H₈O₃
Molecular Weight:176.18
EINECS:201-986-7
Melting Point:186-191 ^oC
Solubility:slightly soluble
Appearance:solid
Properties:Needles from EtOH.
color:off-white to yellow
Water Solubility:slightly soluble
Merck:14,4854
BRN:142217
CAS DataBase Reference:90-33-5(CAS DataBase Reference)
NIST Chemistry Reference:90-33-5(NIST)
EPA Substance Registry System:90-33-5(EPA Substance)
Synonyms of 4-METHYL-7-HYDROXYCOUMARIN (90-33-5):2H-1-Benzopyran, 7-hydroxy-4-methyl-2-oxo-;2H-1-Benzopyran-2-one, 7-hydroxy-4-methyl-;2H-1-Benzopyren-2-one, 7-hydroxy-4-methyl-;4-Methylumbelliferon;4-Metylumbelliferone;7-hydroxy-4-methyl-2h-1-benzopyran-2-on;7-Hydroxy-4-methyl-2H-1-benzopyran-2-one;7-hydroxy-4-methyl-2h-1-benzopyren-2-on

Uses

4-METHYL-7-HYDROXYCOUMARIN (90-33-5) has the usage:
Standard for the fluorometric determination of enzyme activity. Highly fluorescent in alkaline solution. Fluorescence: max Abs. l = 360nm, max. Em. l = 449nm; pH >

Toxicity Data With Reference

1.	orl-rat TDLo:3850 mg/kg	KSRNAM Kiso to Rinsho. Clinical Report. 5 (1971),1619.
2.	ipr-rat LD50:2550 mg/kg	KSRNAM Kiso to Rinsho. Clinical Report. 5 (1971),1619.
3.	scu-rat LD50:7200 mg/kg	KSRNAM Kiso to Rinsho. Clinical Report. 5 (1971),1619.
4.	orl-mus LD50:2850 mg/kg	KSRNAM Kiso to Rinsho. Clinical Report. 5 (1971),1619.
5.	ipr-mus LD50:1750 mg/kg	KSRNAM Kiso to Rinsho. Clinical Report. 5 (1971),1619.

Consensus Reports

Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

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.
Safety Information of 4-METHYL-7-HYDROXYCOUMARIN (90-33-5).
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

Specification

Stability and Reactivity of 4-METHYL-7-HYDROXYCOUMARIN (90-33-5).
Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: Incompatible materials.
Incompatibilities with Other Materials Strong oxidizing agents, strong acids, strong bases.
Hazardous Decomposition Products Carbon monoxide, oxides of nitrogen, carbon dioxide.
Hazardous Polymerization Will not occur.
First Aid Measures of 4-METHYL-7-HYDROXYCOUMARIN (90-33-5).
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin: Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion: Get medical aid. Wash mouth out with water.
Inhalation: Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician: Treat symptomatically and supportively.
Handling and Storage of 4-METHYL-7-HYDROXYCOUMARIN (90-33-5).
Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage: Store in a cool, dry place. Store in a tightly closed container.