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Name |
Ultraviolet Absorbent UV-P |
EINECS | 219-470-5 |
CAS No. | 2440-22-4 | Density | 1.38 g/cm3 |
PSA | 50.94000 | LogP | 2.43450 |
Solubility | 173μg/L at 20℃ | Melting Point |
125.5-129.5 °C(lit.) |
Formula | C13H11N3O | Boiling Point | 423.8 °C at 760 mmHg |
Molecular Weight | 225.25 | Flash Point | 210.1 °C |
Transport Information | N/A | Appearance | N/A |
Safety | 22-24/25 | Risk Codes | 36/37/38 |
Molecular Structure | Hazard Symbols | Xi | |
Synonyms |
p-Cresol,2-(2H-benzotriazol-2-yl)- (7CI,8CI);2-(2-Hydroxy-5-methylphenyl)-2H-benzotriazole;2-(2H-Benzotriazol-2-yl)-p-cresol;2-Benzotriazol-2-yl-4-methylphenol;ADK Stab LA 32;ADK-ARKLS DN 13;BT 1;BT 1 (light stabilizer);Benazol II;Benazol P;Drometrizole;JF 77;Kemisorb 71;Lowilite 55;NSC 91885;Seikalizer AZ;Tinuvin P;UV-P;UVA-P;Uvinul 3033P;Ultraviolet Absorbent UV-P; |
Article Data | 63 |
Conditions | Yield |
---|---|
With sodium hydroxide In ethanol; water at 50 - 55℃; electrochemical reaction; | 99.3% |
With hydrogen; sodium hydroxide In ethanol; water at 80℃; under 18751.9 Torr; Reagent/catalyst; Autoclave; | 99.4% |
With borane-ammonia complex In toluene at 50℃; for 5h; Reagent/catalyst; Solvent; Temperature; | 98.6% |
Conditions | Yield |
---|---|
With sodium hydroxide; thiourea S,S-dioxide In water; isopropyl alcohol for 3h; Heating; | 98% |
With sodium hydroxide In isopropyl alcohol at 85℃; for 24h; Reduction; Cyclization; Irradiation; | 89% |
With sodium hydroxide; bakers' yeast In ethanol 1.) r.t., 30 min, 2.) 80-85 deg C, 40 h; | 80% |
2-(2-Hydroxy-5-methylphenyl)benzotriazole
Conditions | Yield |
---|---|
With hydrogenchloride In water; toluene at 70℃; for 2h; Reagent/catalyst; Temperature; | 92.4% |
9-fluorenone
D-glucose
2-nitro-2'-hydroxy-5'-methyl-azobenzene
A
2-(2-Hydroxy-5-methylphenyl)benzotriazole
B
2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
Conditions | Yield |
---|---|
With sodium hydroxide In methanol; water | A 92.1% B n/a |
With sodium hydroxide In methanol; water | A 92.1% B n/a |
Conditions | Yield |
---|---|
With sodium hydroxide; zinc In water at 90℃; for 1.5h; | 92% |
With sodium hydroxide; zinc In ethanol at 100℃; for 4h; | 85% |
With dimethyl amine; palladium-carbon In water; toluene | 81% |
With samarium diiodide In tetrahydrofuran for 0.833333h; Ambient temperature; | 97 % Spectr. |
Conditions | Yield |
---|---|
In N,N-dimethyl acetamide at 130℃; for 4h; | 86% |
4-methyl-2-(2-nitrophenylazo)phenol
A
2-Methyl-1H-benzimidazole
B
5-methylbenzo[d]oxazol-2(3H)-one
C
2-nitro-aniline
D
2-(2-Hydroxy-5-methylphenyl)benzotriazole
Conditions | Yield |
---|---|
With carbon monoxide; triethylamine In 1,2-dichloro-benzene at 200℃; under 60800 Torr; for 8h; Further byproducts given; | A n/a B n/a C 7% D 82% |
2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-2H-benzotriazole
2-(2-Hydroxy-5-methylphenyl)benzotriazole
Conditions | Yield |
---|---|
With aluminium trichloride; nitromethane In toluene for 7h; Heating; | 79% |
2-nitro-2'-hydroxy-5'-methyl-azobenzene
diethylamine
2-(2-Hydroxy-5-methylphenyl)benzotriazole
Conditions | Yield |
---|---|
palladium on charcoal catalyst In methanol; phosphoric acid tributyl ester | 76% |
2-(2-Hydroxy-5-methylphenyl)benzotriazole
Conditions | Yield |
---|---|
With aluminium trichloride; nitromethane In toluene for 7h; Heating; | 70% |
Assay: 99% min (HPLC)
Transmittance: 440nm: 97% min
500nm: 98% min
Ash content: 0.3% max
1.Introduction of Ultraviolet Absorbent UV-P
UV-P (CAS NO.2440-22-4), its Synonyms are 2-(2'-Hydroxy-5'-methylphenyl)benzotriazole ; 2-(2H-Benzotriazol-2-yl)-4-methylphenol ; Benazol P ; Drometrizole ; Phenol, 2-(2H-benzotriazol-2-yl)-4-methyl- ; UV Absorber-1 ; 2-(2-Hydroxy-5-methylphenyl)-2H-benzotriazole ; 2-(2-Hydroxy-5-methylphenyl)benzotriazole ; p-Cresol, 2-(2H-benzotriazol-2-yl)- .
2.Properties of Ultraviolet Absorbent UV-P
(1) XLogP3 4.3 (2) H-Bond Donor 1 (3) H-Bond Acceptor 3
(4) Rotatable Bond Count 1 (5) Tautomer Count 3 (6) Exact Mass 225.090212
(7) MonoIsotopic Mass 225.090212 (8) Topological Polar Surface Area 50.9
(9) Heavy Atom Count 17 (10) Complexity 259 (11)Covalently-Bonded Unit Count 1
(12) Feature 3D Acceptor Count 2 (13) Feature 3D Donor Count 1 (14) Feature 3D Ring Count 3
(15) Effective Rotor Count 1 (16) Conformer Sampling RMSD 0.6 (17) CID Conformer Count 2
3.Structure descriptors of Ultraviolet Absorbent UV-P
IUPAC Name: 2-(benzotriazol-2-yl)-4-methylphenol
InChI: InChI=1S/C13H11N3O/c1-9-6-7-13(17)12(8-9)16-14-10-4-2-3-5-11(10)15-16/
h2-8,17H,1H3
InChIKey: MCPKSFINULVDNX-UHFFFAOYSA-N
Canonical SMILES : CC1=CC(=C(C=C1)O)N2N=C3C=CC=CC3=N2
4.Uses of Ultraviolet Absorbent UV-P
UV-P is a benzotriazole type UV absorber. It is used for polyvinylchloride , styrenic polymer ( acrylonitrile butadiene , high impact polystyrene , general purpose polystyrene ), unsturated polyester elastomers and adhesives , acrylic resins , polycarbonate , polyurethane , and cellulose ester .
5.Toxicity data of Ultraviolet Absorbent UV-P
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mouse | LD50 | oral | 6500mg/kg (6500mg/kg) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 10(3), Pg. 49, 1966. |