CAS Number
25973-55-1
Name
UV-328
SIN Groups
Alkylphenols
Benzotriazols
Reason for inclusion on the SIN List
This substance has persistent, bioackumulative and toxic properties. It has been found in a variety of environmental samples and in different marine organisms. Estimated and experimental data show PBT properties.
Date for inclusion on the SIN List
2014 October
REACH status, appears on
Source: 
Candidate list
Registration information
Source: 
Full registration
Hazard class and category code(s)
Source: ECHA
No harmonized CLP classification

Chemical information

Synonyms
Chisorb 328; Cyasorb UV 2337; Eversorb 74; Kemisorb 74; Lowilite 28; Seesorb 704; Sumisorb 350; Tin 328; Tinuvin 328; UV 2337; UV-328; UV 74; Viosorb 591; Phenol, 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentyl- (7CI,8CI); 2-(2-Hydroxy-3,5-di-tert-amylphenyl)-2H-benzotriazole; 2-(2-Hydroxy-3,5-di-tert-amylphenyl)benzotriazole; 2-(2-Hydroxy-3,5-di-tert-pentylphenyl)benzotriazole; 2-(2H-Benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)phenol; 2-(2H-Benzotriazol-2-yl)-4,6-bis(2-methyl-2-butanyl)phenol; 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol; 2-(2'-Hydroxy-3',5'-di-tert-amylphenyl)benzotriazole; 2-(3,5-Di-tert-amyl-2-hydroxyphenyl)-2H-benzotriazole; 2-(3,5-Di-tert-amyl-2-hydroxyphenyl)benzotriazole; 2-(3,5-Di-tert-pentyl-2-hydroxyphenyl)-2H-benzotriazole; 2-(3,5-Di-tert-pentyl-2-hydroxyphenyl)benzotriazole; 2-(3',5'-Di-tert-amyl-2'-hydroxyphenyl)benzotriazole
EC number
247-384-8
Registered production volume
Source: ECHA
100 - 1000 tonnes per annum
(Bio)monitoring data
Found in fish, different marine organism, algae, and crustaceans. Source: Nakata, Shinohara et al. 2010; Nakata, Murata et al. 2009; Nakata, Shinohara et al. 2012; Kim, Isobe et al. 2011; Kim, Ramaswamy et al. 2011
Possible uses
Source: 
This substance has persistent, bioackumulative and toxic properties.It has been found in a variety of environmental samples and in different marine organisms. Estimated and experimental data show PBT properties.
Technical function of substances
Source: 
Tinuvin 328 is an ultraviolet (UV) absorber. It is a highly effective light stabilizer (LS) for a variety of plastics and other organic substrates. UV-LS are used in many plastics (e.g. PET bottles), rubbers, coatings, fibers, paints, and in cosmetic products like sunscreens. Source: ECHA 2013
Registered use(s) - Sector End Use (SU)
Source: ECHA
SU 10: Formulation [mixing] of preparations and/or re-packaging (excluding alloys)
SU 12: Manufacture of plastics products, including compounding and conversion
Registered use(s) - Chemical Product category (PC)
Source: ECHA
PC 1: Adhesives, sealants
PC 32: Polymer preparations and compounds
PC 9a: Coatings and paints, thinners, paint removes
Registered use(s) - Article category (AC)
Source: 
AC 13: Plastic articles
Registered use(s) - Environmental Release Category (ERC)
Source: ECHA
ERC 10a: Wide dispersive outdoor use of long-life articles and materials with low release
ERC 11a: Wide dispersive indoor use of long-life articles and materials with low release
ERC 2: Formulation of preparations
ERC 3: Formulation in materials
ERC 5: Industrial use resulting in inclusion into or onto a matrix
ERC 8c: Wide dispersive indoor use resulting in inclusion into or onto a matrix
ERC 8f: Wide dispersive outdoor use resulting in inclusion into or onto a matrix
Registered use(s) - Process Category (PROC)
Source: ECHA
PROC 10: Roller application or brushing
PROC 11: Non industrial spraying
PROC 12: Use of blowing agents in manufacture of foam
PROC 13: Treatment of articles by dipping and pouring
PROC 14: Production of preparations or articles by tabletting, compression, extrusion, pelletisation
PROC 15: Use as laboratory reagent
PROC 19: Hand-mixing with intimate contact and only PPE available.
PROC 1: Use in closed process, no likelihood of exposure
PROC 21: Low energy manipulation of substances bound in materials and/or articles
PROC 24: High (mechanical) energy work-up of substances bound in materials and/or articles
PROC 2: Use in closed, continuous  process with occasional controlled exposure
PROC 3: Use in closed batch process (synthesis or formulation)
PROC 4: Use in batch and other process (synthesis) where opportunity for exposure arises
PROC 5: Mixing or blending in batch processes for formulation of preparations and articles (multistage and/or significant contact)
PROC 6: Calendering operations
PROC 7: Industrial spraying
PROC 8a: Transfer of substance or preparation (charging/discharging) from/to vessels/large containers at non-dedicated facilities
PROC 8b: Transfer of substance or preparation (charging/discharging) from/to vessels/large containers at dedicated facilities
PROC 9: Transfer of substance or preparation into small containers (dedicated filling line, including weighing)
25973-55-1

Producers

Company Group
Company Name
3V Sigma USA

3V SIGMA USA INC., 888 Woodstock St, Georgetown, Georgetown, 29440, SC, , USA

Addivant

Addivant UK Ltd, Tenax Road Trafford Park, M17 1WT, Manchester, United Kingdom

ADDIVANT USA LLC - SOUTH PLANT, 1000 Morgantown Industrial Park, Blg 816, Morgantown, Baldwin County, 26501, WV, , USA

AZELIS AMERICAS

MONSON COS INC, 154 Pioneer Drive, Leominster, Worcester, 01453-3498, MA, , USA

BASF

BASF CORP, 111 W Irene Rd, Zachary, East Baton Rouge Parish, 70791, LA, , USA

BASF IMPORTS PART 3A, 100 Park Ave, Florham Park, Morris, 07932, NJ, , USA

BASF SE, Carl-Bosch-Str. 38,67056, Ludwigshafen am Rhein Rheinland-Pfalz, Germany

Chemtura

CHEMTURA CORPORATION, 199 Benson Road, Middlebury, New Haven, 06762-3218, CT, , USA

EVERLIGHT

EVERLIGHT USA, INC., 10507 Southern Loop Blvd, Pineville, Mecklenburg, 28134, NC, , USA

MAROON

MAROON GROUP LLC, 1390 Jaycox Rd, Avon, Lorain, 44011, OH, , USA

MAYZO

MAYZO, INC., 3935 Lakefield Ct, Suwanee, Forsyth, 30024, GA, , USA

The Carlyle Group

AXALTA COATING SYSTEMS, Applied Corporate Center, Glen Mills, Delaware, 19342, PA, , USA

Source: ECHA