--- type: "WebPage" title: "Analysis of organic additives: Chimassorb 944 (CAS No. 71878-19-8)" description: "You wish to carry out an analysis of organic additives: Chimassorb 944 (CAS No. 71878-19-8) In what context should an analysis of organic additives be carried out: Chimassorb 944 (CAS No. 71878-19-8) The analysis of Chimassorb 944 (polymeric HALS) is..." resource: "https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/polymer-additives/analysis-organic-additives-chimassorb-944/" tags: ["EN", "pll_6926b0e56de66", "Anaïs DECAUX"] timestamp: "2025-12-31T08:32:19Z" published: "2025-11-26T08:11:33Z" language: "en" author: "Laure Durieux" --- # Analysis of organic additives: Chimassorb 944 (CAS No. 71878-19-8) ## You wish to carry out an analysis of organic additives: Chimassorb 944 (CAS No. 71878-19-8) ### In what context should an analysis of organic additives be carried out: Chimassorb 944 (CAS No. 71878-19-8) The **analysis of Chimassorb 944** (polymeric HALS) is performed in well-defined industrial and regulatory contexts, primarily due to its crucial role as a UV stabilizer and its favorable low-migration profile. The objective of this analytical **strategy is threefold**: - **Durability and Aging (UV Performance)** - **Verification of residual concentration**: ensuring that Chimassorb 944 is present in sufficient quantity after processing and exposure (accelerated aging tests). - **Ensuring performance**: certifying that the material retains its UV stability over the long term (preventing yellowing and cracking) and maintains the mechanical properties of the polymer exposed to weathering. - **Monitoring depletion**: the analysis measures the rate of additive depletion over time to estimate the actual lifespan of the product (agricultural films, outdoor components). - **Regulatory Compliance (Low Migration)** - **Compliance with Specific Migration Limits (SMLs)**: Chimassorb 944 is a high molecular weight additive. Its analysis is required to demonstrate low migration and compliance with Specific Migration Limits (SMLs), particularly in food contact packaging (FCM). - **Product safety**: its analysis supports the declaration of conformity to ensure that this stabilizer is used in safe concentrations, in accordance with general chemical substance regulations (such as REACH). ### What is Chimassorb 944 (CAS No. 71878-19-8)? **Chimassorb 944** (CAS 71878-19-8) is a **HALS (Hindered Amine Light Stabilizer)** type stabilizing additive used to protect polymers from UV-induced degradation. Its primary role is to capture free radicals formed under UV light to prevent premature aging of polymers. Through this action, it helps maintain the mechanical properties of materials and preserve their visual appearance by limiting discoloration and the formation of cracks. ### Our organic additive analysis services [Analysis of Irgafos 168 (CAS No. 31570-04-4)](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/polymer-additives/analysis-organic-additives-irgafos-168.md) [Analysis of Triphenyl phosphite (TPP) CAS No. 101-02-0](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/polymer-additives/analysis-tpp-cas-01-02-0.md) [Analysis of DBP (dibutyl phthalate) CAS No. 84-74-2](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/polymer-additives/analysis-organic-additives-dbp.md) [Analysis of TOTM (trimellitate) CAS No. 3319-31-1](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/polymer-additives/analysis-organic-additives-totm.md) [Analysis of Irganox 1010 (CAS No. 6683-19-8), Irganox 1076 (CAS No. 2082-79-3), Irganox 3114 (CAS No. 27676-62-6)](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/polymer-additives/analysis-additives-irganox-1010-1076-3114.md) [Analysis of Tinuvin 770 (CAS No. 52829-07-9), Tinuvin 622 (CAS No. 65447-77-0), Tinuvin 327 (CAS No. 3864-99-1), Tinuvin 328 (CAS No. 25973-55-1), Tinuvin P (CAS No. 2440-22-4)](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/polymer-additives/analysis-organic-additives-tinuvin.md) [Analysis of BHT (butylated hydroxytoluene) CAS No. 128-37-0](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/polymer-additives/analysis-bht-cas-128-37-0.md) ## FILAB meets your needs for the analysis of Chimassorb 944 (CAS No. 71878-19-8) ### Our techniques for the analysis of Chimassorb 944 (CAS No. 71878-19-8) [### HPLC To separate and quantify Chimassorb 944 from the other ingredients in the formula](https://filab.fr/en/our-technical-resources/laboratory-analysis-uplc.md) [### GC-MS To identify and quantify Chimassorb 944](https://filab.fr/en/our-technical-resources/laboratory-analysis-gcms.md) [### LC-MSMS To detect and quantify traces of Chimassorb 944 or its degradation products](https://filab.fr/en/our-technical-resources/altis-lc-msms-analysis.md) ### FTIR For rapid qualitative analysis on samples of pure Chimassorb 944 or in raw material ## Why choose FILAB for the analysis of organic additives: Chimassorb 944 (CAS No. 71878-19-8) For over ten years, the FILAB laboratory has developed extensive expertise in [chemical analysis](https://filab.fr/en/our-services/our-analysis-services/chemical-analysis-laboratory.md). Our laboratory boasts [state-of-the-art analytical equipment](https://filab.fr/en/our-technical-resources.md) and highly skilled personnel to provide services that meet your compliance requirements for the analysis of organic additives, specifically Chimassorb 944 (CAS No. 71878-19-8), on any type of matrix. ## FAQ What is an organic polymer additive and what is its main role? - **Definition**: a polymeric organic additive is a synthetic molecule (e.g., antioxidants, UV stabilizers, plasticizers) added in small quantities to a polymer resin (plastic, elastomer) to improve its properties or extend its lifespan. - **Purpose**: to protect the material against external aggressions (heat, UV light, oxygen) that cause degradation (yellowing, cracking, loss of mechanical properties). In which materials can Chimassorb 944 be analyzed? Dosage is possible on: - Polyolefins (PE, PP) - Polyamides and elastomers - Polyurethanes - Synthetic fibers and technical textiles - Plastic films, resins, and masterbatches - UV-exposed composites What concentration levels can be detected? The methods allow for the detection of Chimassorb 944 in trace amounts and the quantification of up to several percent, depending on the matrix. The choice of technique is tailored to the required sensitivity and the complexity of the material. Can Chimassorb 944 be analyzed with other stabilizers? Yes. It is possible to simultaneously dose several additives, such as other HALS, UV absorbers (benzophenones, benzotriazoles) or phenolic antioxidants, in order to obtain a complete view of the formulation. Can the results be linked to a product defect? Yes. Expert analysis can correlate Chimassorb 944 levels with observed defects, such as yellowing, embrittlement, cracking, or premature oxidation of the polymer. Can a customized method be developed for this analysis? Yes. If the matrix is ​​complex or if the required detection threshold is very low, the laboratory can develop and validate a specific method adapted to your industrial constraints.