DIBENZOYL METHANE

PRODUCT IDENTIFICATION
CAS NO. 120-46-7

DIBENZOYL METHANE
EINECS NO. 204-398-9
FORMULA C15H12O2
MOL WT. 224.25
H.S. CODE  
SMILES

 
TOXICITY  
SYNONYMS
1,3-Diphenyl-1,3-propanedione; 2-Benzoylacetophenone;
omega-Benzoylacetophenone; Phenyl phenacyl ketone; 1,3-Diphenyl-1,3-propanediamine; 1,3-Diphenylpropanedione; 1,3-Diphenylpropane-1,3-dione;

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE white to yellow crystalline powder
MELTING POINT 76 - 80 C
BOILING POINT  
SPECIFIC GRAVITY

 
SOLUBILITY IN WATER  
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS Health: 1; Flammability: 0; Reactivity: 0
FLASH POINT

 
STABILITY Stable under normal conditions

APPLICATIONS
Benzophenone, an aromatic ketones (diphenyl ketone), is an important compound in organic photochemistry and perfumery as well as in organic synthesis. It is a white crystalline substance with rose-like odor; insolube in water; melting point 49 C; boiling point 305 - 306 C. Benzophenone is used as a constituent of synthetic perfumes and as a starting material for the manufacture of dyes, pesticides and drugs (especially anxiolytic and hypnotic drugs). Benzophenone is used as a photoinitiator of UV-curing applications in inks, adhesive and coatings, optical fiber as well as in printed circuit boards. Photoinitiators are compounds that break down into free radicals upon exposure to ultraviolet radiation. Photoinitiators undergo a unimolecular bond cleavage upon irradiation to yield free radicals (benzoin esters; benzil ketals; alpha-dialkoxy acetophenones; alpha-hydroxy alkylphenones; alpha-amino alkylphosphine; acylphosphine oxides). Another type of photoinitiators undergo a bimolecular reaction where the excited state of the photoinitiator interacts with a second molecule (a coinitiator) to generate free radicals (benzophenones, amines; thioxanthones, titanocenes). Ultraviolet radiation has more energy than visible light, and thus degrade the physical properties such as the appearance of organic substances and plastics. Benzophenones can act as optical filters or deactivate substrate molecules that have been excited by light for the protection polymers and organic substances. They, cosmetic grades, are used as sunscreen agents to reduce skin damage by blocking UV-A, B.

Chemical ingredients for sunscreen are;

  • p-Aminobenzoic acids
    • p-Aminobenzoic acid (CAS #: 150-13-0)
    • p-Aminobenzoic Acid, monoglyceryl Ester (CAS #: 136-44-7)
    • p-Aminobenzoic Acid, octyl dimethyl Ester (Padimate 0, CAS #: 21245-02-3)
    • p-Aminobenzoic Acid, ethyl dihydroxypropyl  (Roxadimate, CAS #: 58882-17-0)
    • p-Aminobenzoic Acid, 2,4-dihydroxy-N-(3-hydroxypropyl)-3,3-dimethylbutanamide ester
    • Octyl Triazone (CAS #: 88122-99-0)
    • p-Aminobenzoic Acid, PEG-25 (CAS #: 116242-27-4)
  • Anthranilates
    • Menthyl anthranilate (CAS #: 134-09-8)
  • Benzophenones
    • Benzophenone (CAS #: 119-61-9)
    • 2,4-Dihydroxybenzophenone (Benzophenone-1, CAS #: 131-56-6)
    • 2,2',4,4'-Tetrahydroxybenzophenone (Benzophenone-2, CAS #: 131-55-5)
    • 2-Hydroxy-4-methoxybenzophenone (Benzophenone-3, Oxybenzone, CAS #: 131-57-7)
    • 2-Hydroxy-4-methoxybenzophenone-5-sulfonic Acid (Benzophenone-4, Sulisobenzone, CAS #: 4065-45-6
    • 2-Hydroxy-4-methoxybenzophenone-5-sulfonic Acid, Monosodium Salt (Benzophenone-5, CAS #: 6628-37-1)
    • 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone (Benzophenone-6, CAS #: 131-54-4)
    • 5-Chloro-2-hydroxybenzophenone  (Benzophenone-7, CAS #: 85-19-8)
    • 2,2'-Dihydroxy-4-methoxybenzophenone (Benzophenone-8, Dioxybenzone, CAS #: 131-53-3)
    • 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disulfonic Acid Sodium Salt (Benzophenone-9, CAS #: 76656-36-5)
    • 2-Hydroxy-4-methoxy-4'-methyl-benzophenone (Benzophenone-10, Mexenone, CAS #: 1641-17-4)
    • Bis(2,4-ihydroxyphenyl)Methanone (Benzophenone-11, CAS #: 1341-54-4)
    • 2-Hydroxy-4-(Octyloxy)Benzophenone (Benzophenone-12, Octabenzone, CAS #: 1843-05-6)
    • 2,2'-Dihydroxy-4-methoxybenzophenone [Dioxybenzone, CAS #: 131-53-3)
    • 2-Hydroxy-4-methoxybenzophenone (Oxybenzone, CAS #: 131-57-7)
    • 2-Hydroxy-4-methoxybenzophenone-5-sulphonic Acid  (Sulisobenzone, CAS #: 4065-45-6)
  • Camphors
    • Benzylidene Camphor Sulfonic Acid (CAS #: 56039-58-8)
    • 3-Benzylidene Camphor (CAS #: 15087-24-8)
    • Polyacrylamidomethyl Benzylidene Camphor (CAS #: 113783-61-2)
    • Terephthalylidene Dicamphor Sulfonic Acid (CAS #: 90457-82-2)
    • 3-(4-Methylbenzyliden)Camphor (CAS #: 36861-47-9)
    • Camphor Benzalkonium Methosulfate (CAS #: 52793-97-2)
    • Bornelone (CAS #: 2226-11-1)
  • Cinnamates
    • Ethyl Cinnamate (CAS #: 103-36-6)
    • 2-Ethoxyethyl-p-methoxycinnamate (Cinoxate, CAS #: 104-28-9)
    • Isoamyl P-methoxycinnamate (CAS #: 71617-10-2)
    • Diisopropyl Methyl Cinnamate (CAS #: 32580-71-5)
    • 2-Ethylhexyl Alpha-cyano-beta-phenylcinnamate (Octocrylene, CAS #: 6197-30-4)
    • Diethanolamine Methoxycinnamate (CAS #: 56265-46-4)
    • Isopropyl Methoxycinnamate (CAS #: 5466-76-2)
    • Isoamyl P-methoxycinnamate (CAS #: 71617-10-2)
    • Glyceryl Octanoate Dimethoxycinnamate
    • Ethyl Diisopropylcinnamate (CAS #: 32580-72-6)
    • Ethyl Methoxycinnamate  (CAS #: 99880-64-5)
    • Octyl Methoxycinnamate (CAS #: 5466-77-3)
  • Dibenzoylmethanes
    • Dibenzoylmethane (CAS #: 120-46-7)
    • Isopropyl Dibenzoylmethane (Eusolex, CAS #: 63250-25-9)
    • 4-tert-Butyl-4'-methoxy-dibenzoylmethane (Avobenzone, CAS #: 70356-09-1)
  • Salicylates
    • 3,3,5-Trimethylcyclohexyl Salicylate (Homosalate, CAS #: 118-56-9)
    • Benzyl Salicylate (CAS #: 118-58-1)
    • Octyl Salicylate (CAS #: 118-60-5)
    • 2-Hydroxyethyl Salicylate (CAS #: 87-28-5)
    • Menthyl Salicylate (CAS #: 89-46-3)
    • Isopropylbenzyl Salicylate  (CAS #: 94134-93-7)
  • Imidazoles
    • Phenylbenzimidazole
    • Phenylbenzimidazol-5-sulfonic Acid (CAS #: 27503-81-7)
    • Phenylbenzimidazole Tea Sulfonate  (CAS #: 73705-00-7)
    • Urocanic Acid [4-imidazoleacrylic Acid, CAS #: 104-98-3]
    • Ethyl Urocanate (CAS #: 27538-35-8)
    • Bisymidazylate (CAS #: 180898-37-7)
    • Sodium Phenylbenzimidazole Sulfonate (CAS #: 5997-53-5)
  • Others
    • Petrolatum Jelly (CAS #: 8009-03-8)
    • Ethyl 2-cyano-3,3-diphenylacrylate (Etocrilene, CAS #: 5232-99-5)
    • Diurethane Dimethacrylate (CAS #: 103597-45-1)
    • Drometrizole Trisiloxane (CAS #: 155633-54-8)
    • Bis(Ethylhexyloxyphenol Methoxyphenol) Triazine (CAS #: 187393-00-6
    • 2-(2-Hydroxy-5-methyl-phenyl)Benzotriazole  (Drometrizole, CAS #: 2440-22-4)
    • Dioctyl Butamido Triazone (CAS #: 154702-15-5)
  • Inorganic compounds (physical sunscreens)
    • Titanium dioxide
    • Zinc oxide
SALES SPECIFICATION

APPEARANCE

 white to yellow crystalline powder

ASSAY

98.0% min
MELTING POINT 76 - 80 C

LOSS ON DRYING

0.5% max

ASH

0.1% max
TRANSPORTATION
PACKING 25kgs in fiber drum
HAZARD CLASS Not regulated
UN NO.  
OTHER INFORMATION
Hazard Symbols: n/a, Risk Phrases: n/a,, Safety Phrases: 24/25-28A-37-45