CAS No.2440-22-4,2-(2H-Benzotriazol-2-yl)-p-cresol Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	2440-22-4
Name:	2-(2H-Benzotriazol-2-yl)-p-cresol
Article Data:	63

Formula:	C₁₃H₁₁N₃O
Molecular Weight:	225.25
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;
EINECS:	219-470-5
Density:	1.38 g/cm³
Melting Point:	125.5-129.5 °C(lit.)
Boiling Point:	423.8 °C at 760 mmHg
Flash Point:	210.1 °C
Solubility:	173μg/L at 20℃
Hazard Symbols:	Xi
Risk Codes:	36/37/38
Safety:	22-24/25
PSA:	50.94000
LogP:	2.43450

Synthetic route

: 1435-71-8
4-methyl-2-(2-nitrophenylazo)phenol

: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions

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%

: 1435-71-8
2-nitro-2'-hydroxy-5'-methylazobenzene

: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions

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%

: C13H11N3O2

: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions

Conditions	Yield
With hydrogenchloride In water; toluene at 70℃; for 2h; Reagent/catalyst; Temperature;	92.4%

: 486-25-9
9-fluorenone

: 50-99-7
D-glucose

: 1435-71-8
2-nitro-2'-hydroxy-5'-methyl-azobenzene

A: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

B: 54659-85-7
2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

Conditions

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

...Expand

: 1435-71-8
2-nitro-2'-hydroxy-5'-methyl-azobenzene

: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions

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.

: sodium azide

: 1435-71-8
4-methyl-2-(2-nitrophenylazo)phenol

: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions

Conditions	Yield
In N,N-dimethyl acetamide at 130℃; for 4h;	86%

: 1435-71-8
4-methyl-2-(2-nitrophenylazo)phenol

A: 615-15-6
2-Methyl-1H-benzimidazole

B: 22876-15-9
5-methylbenzo[d]oxazol-2(3H)-one

C: 88-74-4
2-nitro-aniline

D: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions

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%

...Expand

: 23939-33-5
2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-2H-benzotriazole

: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions

Conditions	Yield
With aluminium trichloride; nitromethane In toluene for 7h; Heating;	79%

: 1435-71-8
2-nitro-2'-hydroxy-5'-methyl-azobenzene

: 109-89-7
diethylamine

: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions

Conditions	Yield
palladium on charcoal catalyst In methanol; phosphoric acid tributyl ester	76%

: 2-Benzotriazol-2-yl-6-(1,1-dimethyl-propyl)-4-methyl-phenol

: 2440-22-4
2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions

Conditions	Yield
With aluminium trichloride; nitromethane In toluene for 7h; Heating;	70%

Raw Materials

486-25-9

119-66-4

1435-71-8

142-71-2

109-76-2

50-99-7

23939-33-5

109-89-7

Downstream Products

2170-60-7

98809-58-6

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Standards and Recommendations

Assay: 99% min (HPLC)
Transmittance: 440nm: 97% min
500nm: 98% min
Ash content: 0.3% max

Specification

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.