Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Hazards Identification
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5,7-Dihydroxy-4-methylchromen-2-one(2107-76-8)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Hazards Identification

Product Identification

Product Name
5,7-Dihydroxy-4-methylchromen-2-one
Synonyms
2H-1-Benzopyran-2-one, 5,7-dihydroxy-4-methyl
5,7-Dihydroxy-4-methylchromen-2-one
CAS
2107-76-8
Formula
C10H8O4
Molecular Weight
192.17
EINECS
218-289-9
Beilstein/Gmelin
179133
Beilstein Reference
5-18-03-00228

Physical and Chemical Properties

Appearance
Yellow powder. Fluoresces blue. Absorbs ultraviolet light.
Melting Point
273
Boiling Point
379
Partition Coefficient
1.22
Usage
In suntan oils as sun screen, in wall paints as whitening agent.

First Aid Measures

Ingestion
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.
Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Handling and Storage

Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Exposure Controls/Personal Protection

Personal Protection
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.
Exposure Effects
The toxicological properties of this material have not been investigated.

Fire Fighting Measures

Fire Fighting
Fires involving this material should be controlled using a dry chemical, carbon dioxide or Halon extinguisher.
Fire Potential
This material is probably combustible.

Accidental Release Measures

Small spills/leaks
Should a spill occur while you are handling this chemical, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with ethanol and transfer the dampened material to a suitable container. Use absorbent paper dampened with ethanol to pick up any remaining material. Seal the absorbent paper, and any of your clothes, which may be contaminated, in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with ethanol followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

Stability and Reactivity

Stability
No data.
Incompatibilities
Reacts as weak organic acids Incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products.

Hazards Identification

EC Risk Phrase
R 36/37/38
EC Safety Phrase
S 26 36
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