| Identification | More | [Name]
2,4-Dihydroxybenzophenone | [CAS]
131-56-6 | [Synonyms]
2,4-DIHYDROXYBENZOPHENONE
(2,4-DIHYDROXY-PHENYL)-PHENYL-METHANONE
4-BENZORESORCINOL
4-BENZOYLRESORCINOL
BENZOPHENONE-1
BENZORESORCINOL
DHB
DIHYDROXYBENZOPHENONE(2,4-)
SYNSORB
(2,4-dihydroxyphenyl)phenyl-methanon
(2,4-Dihydroxyphenyl)-phenylmethanon (2,4-dihydroxybenzophenon)
2,4-DHBP
2,4-Dihydroxtbenzophenone
2,4-Dihydroxybenzofenon
2,4-dihydroxy-benzophenon
2,4-dihydroxydiphenylketone
Advastab 48
advastab48
Benzophenone, 2,4-dihydroxy-
Dastib 263 | [EINECS(EC#)]
205-029-4 | [Molecular Formula]
C13H10O3 | [MDL Number]
MFCD00002277 | [Molecular Weight]
214.22 | [MOL File]
131-56-6.mol |
| Chemical Properties | Back Directory | [Appearance]
yellow crystalline powder | [Melting point ]
144.5-147 °C(lit.)
| [Boiling point ]
194 °C (1 mmHg)
| [density ]
1,32 g/cm3 | [vapor pressure ]
0Pa at 25℃ | [refractive index ]
1.5090 (estimate) | [Fp ]
125 °C
| [storage temp. ]
-20°C | [solubility ]
Chloroform (Slightly, Heated), Ethanol (Slightly, Heated) | [form ]
Crystalline Powder | [pka]
7.72±0.35(Predicted) | [color ]
Yellow | [PH]
5 (10g/l, H2O, 20℃)(slurry) | [Water Solubility ]
insoluble | [Merck ]
14,1106 | [BRN ]
1311566 | [Contact allergens]
BZP-1 is used, for example, in paints, plastics, and nail
varnishes. | [InChIKey]
ZXDDPOHVAMWLBH-UHFFFAOYSA-N | [LogP]
2.964 at 25℃ | [CAS DataBase Reference]
131-56-6(CAS DataBase Reference) | [NIST Chemistry Reference]
Methanone, (2,4-dihydroxyphenyl)phenyl-(131-56-6) | [EPA Substance Registry System]
Methanone, (2,4-dihydroxyphenyl)phenyl- (131-56-6) |
| Hazard Information | Back Directory | [Chemical Properties]
yellow crystalline powder | [Uses]
2,4-Dihydroxybenzophenone is an metabolite of Benzophenone (B204980), an compound used in the manufacturing of antihistamines, hypnotics and insecticides. | [Uses]
Ultraviolet light absorber, especially in paints and plastics. | [Definition]
ChEBI: 2,4-Dihydroxybenzophenone is a member of benzophenones. | [Preparation]
Obtained by condensation of benzanilide with resorcinol in the presence of zinc chloride and phosphorous oxychloride at 130–140° for 1 h (25%). | [Purification Methods]
Recrystallise it from MeOH. [Beilstein 8 IV 2442.] |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36:Irritating to the eyes.
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection . | [WGK Germany ]
2
| [RTECS ]
DJ0700000
| [Hazard Note ]
Irritant | [TSCA ]
Yes | [HS Code ]
29145000 | [Safety Profile]
Poison by intravenous
and intraperitoneal routes. Mildly toxic by
ingestion. An eye irritant. When heated to
decomposition it emits acrid smoke and
irritating fumes. | [Hazardous Substances Data]
131-56-6(Hazardous Substances Data) | [Toxicity]
LD50 orally in Rabbit: > 5000 mg/kg |
| Questions And Answer | Back Directory | [pollution]
Benzophenones (BPs), as UV filters, are widely utilized in personal care products such as sunscreen, body lotion and plastic products. 2,4-Dihydroxybenzophenone (BP-1) is a representative type of BP that has attracted wide attention owing to the high residues in the aquatic environment. According to previous studies, this compound can enter the aquatic environment through recreational water activities or incomplete removal in wastewater treatment plants (WWTPs). For example, BP-1 has been widely detected in seawater, groundwater, river water and WWTP effluents in Spain at concentrations ranging from 4.2 ng/L to 722.0 ng/L. More seriously, because of extensive human exposure through plastic products and sunscreen cosmetics, BP-1 has been detected in human urine, blood and milk[1]. |
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