147783-69-5

Basic information

• Product Name: Propanedioic acid, (4-methoxyphenyl)methylene-, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) ester
• Synonyms: Propanedioic acid, (4-methoxyphenyl)methylene-, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) ester;Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) 2-(4-methoxyl-benxylidene)malonate ;bis(1,2,2,6,6-pentamethyl-4-piperidinyl) 2-(4-methoxybenzylidene)malonate;Sanduvor PR 31;PR 31;PBH 3;Hostavin PR 31;Bis(1,2,2,6,6-pentamethylpiperidin-4-yl) p-methoxybenzylidenemalonate
• CAS NO: 147783-69-5
• Molecular Formula: C31H48N2O5
• Molecular Weight: 528.72
• EINECS: 414-840-4
• Mol File: 147783-69-5.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 548°Cat760mmHg
• Flash Point: 285.2°C
• Appearance: /
• Density: 1.1g/cm³
• Vapor Pressure: 4.63E-12mmHg at 25°C
• Refractive Index: 1.543
• PKA: 9.66±0.10(Predicted)
• CAS DataBase Reference: Propanedioic acid, (4-methoxyphenyl)methylene-, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) ester(CAS DataBase Reference)
• NIST Chemistry Reference: Propanedioic acid, (4-methoxyphenyl)methylene-, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) ester(147783-69-5)
• EPA Substance Registry System: Propanedioic acid, (4-methoxyphenyl)methylene-, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) ester(147783-69-5)

Safety Data

• Hazard Codes: N
• Statements: 50/53
• Safety Statements: 22-60-61
• Hazardous Substances Data: 147783-69-5(Hazardous Substances Data)

Usage

General Description

Propanedioic acid, (4-methoxyphenyl)methylene-, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) ester, also known as Tinuvin 144, is a UV stabilizer and hindered amine light stabilizer (HALS) commonly used in plastics, coatings, and adhesives. It acts as a free radical scavenger, protecting the material from degradation and discoloration caused by exposure to UV radiation. Specifically, this chemical is effective in preventing the degradation of polymers, such as polypropylene, polyethylene, and polystyrene, making it a valuable additive in the production of various plastic products. Its high thermal stability and excellent compatibility with a wide range of materials make it a popular choice for use in outdoor applications, such as automotive parts and building materials, to prolong the lifespan and maintain the appearance of the products.

InChI:InChI=1/C31H48N2O5/c1-28(2)17-23(18-29(3,4)32(28)9)37-26(34)25(16-21-12-14-22(36-11)15-13-21)27(35)38-24-19-30(5,6)33(10)31(7,8)20-24/h12-16,23-24H,17-20H2,1-11H3

Relevant articles and documents

Benzophenone uv-absorbers with heterocyclic substituents

Compounds having the formula: wherein R1 represents hydrogen, C1-C20 alkyl which is unsubstituted or substituted by one or more ammonium, mono-, di-, tri or tetra-C1-C12 alkylammonium groups or by one or more sulphonium groups or represents an aralkyl residue having a total of from 7 to 10 carbon atoms and, in which, the aryl group is unsubstituted or substituted by C1-C4alkyl, C1-C4 alkoxy or halogen and Z is a group selected from R2, R3 and R4, independently, representing hydrogen, C1-C4alkyl, C1-C4 alkoxy, halogen, NHCOC1-C4 alkyl or phenyl which is unsubstituted or substituted by. C1-C4 alkyl, C1-C4 alkoxy or halogen, a process for their preparation and use of the compounds of formula (1) as UV-absorbers which have improved absorption spectrum characteristics, superior resistance to exposure to UV light and excellent thermal stability, relative to known benzophenone compounds.

Synergistic UV absorber combination

A stabilizer composition comprising (A) a compound of the formula I wherein R is (CH2-CH2-O-)n-R2; -CH2-CH(OH)-CH2-O-R2; or -CH(R3)-CO-O-R4; n is 0 or 1; R2 is C1-C13alkyl or C2-C20alkenyl or C6-C12aryl or CO-C1-C18alkyl; R3 is H or C1-C8alkyl; R4 is C1-C12alkyl or C2-C12alkenyl or C5-C6cycloalkyl; and (B) one or more compounds selected from (i) to (xlv) as defined in claim 1 is especially effective towards stabilizing organic materials against degradation induced by light, heat or oxidation.

Hydroxyphenyltriazines

A description is given of compounds of the formula wherein R and R' independently are H, methyl or ethyl. The novel compounds are effective as stabilizers for organic material against the damaging effect of light, oxygen and heat; they are also suitable for use in skin or hair protection preparations.