Methylene bis-benzotriazolyl tetramethylbutylphenol
Synonyms
Phenol, 2,2'-methylenebis(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)-;
Bisoctrizole;
MBBT;
Category
Non-ionic surfactant
> Amine
>> Heteroaromatic Amine
>>> Triazole and its Derivatives
Chemical Numbering System
CAS: 103597-45-1
EINECS: 403-800-1
Molecular Formula & Molecular Weight
Molecular Formula: C41H50N6O2
Molecular Weight: 658.87
Structure
Properties
Appearance (1), solid.
Solubility insoluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2, nitrogen oxides and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent UV absorbing, antistatic, dispersing abilities. UVA, UVB bands.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as UV absorber.
2, Personal care products
UV absorbing agent, UV filter, light stabilizer in personal care products.
Further information:
(1), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, be included in the allowable UV filters.
Maximum concentration is 10%.
(2), (2a), In accordance with EU regulations (EC) 2018/885, directive 2000/6/EC, be included in Annex VI/23.
Maximum concentration is 10%.
(2b), In accordance with EU regulations (EC) 2018/885, directive 2000/6/EC, Methylene bis-benzotriazolyl tetramethylbutylphenol (nano) is included in Annex VI/23a.
Maximum concentration is 10%.
In case of combined use of Methylene bis-benzotriazolyl tetramethylbutylphenol and Methylene bis-benzotriazolyl tetramethylbutylphenol (nano), the total concentration does not exceed to 10%.
Not to be used in applications that may lead to exposure of the end user's lungs by inhalation.
Only nanomaterials having the following characteristics are allowed:
(2b-1), Purity: ≥ 98.5%, with 2,2'-methylenebis(6-(2H-benzotriazol-2-yl)-4-(isooctyl)phenol) isomer fraction does not exceed to 1.5%.
(2b-2), Solubility (water, 25 °C): < 5ng/L; Partition coefficient (Log Pow, 25 °C): 12.7.
(2b-3), Uncoated.
(2b-4), Median particle size: ≥ 120nm (mass distribution) and (or) ≥ 60nm (number-size distribution).
3, Polymer
UV absorbing agent in paints, polymers, resins, plastics.
Manufacturers
Update: 20200830(1);