What is HALS-2020 and how does it compare across HALS grades?
HALS-2020 (CAS 192268-64-7) is a high-molecular-weight oligomeric triazine-piperidine hindered-amine light stabilizer. Its oligomeric structure balances the mobility of monomeric grades (770, 292) with the permanence of polymeric grades (622, 944), giving durable light protection with good extraction resistance. Bulk quantities are sourced to specification.
- ▸ High-molecular-weight polymeric HALS for long-term light stabilization of polyolefin films, tapes and fibers
- ▸ Low-volatility, extraction-resistant protection suited to agricultural and packaging films
- ▸ Weathering protection of PP/PE, PA, TPE and PU articles
| Grade | Structure class | CAS No. | Mol. wt (g/mol) |
|---|---|---|---|
| HALS-770 (bis-tetramethylpiperidinyl sebacate) | Monomeric | 52829-07-9 | 480.7 |
| HALS-292 (bis-pentamethylpiperidinyl sebacate) | Monomeric (liquid) | 41556-26-7 | 508.8 |
| Bis-piperidinyl isophthalamide | Monomeric | 42774-15-2 | 442.6 |
| Monomeric C16-18 piperidinyl ester | Monomeric | 167078-06-0 | — |
| HALS-123 (N-alkoxy NOR-HALS) | Monomeric (NOR) | 129757-67-1 | — |
| HALS-2020 (triazine-piperidine) you are here | Oligomeric | 192268-64-7 | 684.1 |
| Oligomeric triazine-piperidine | Oligomeric | 106990-43-6 | 2285.6 |
| HALS-622 (succinate-piperidinol polyester) | Polymeric | 65447-77-0 | — |
| HALS-944 (triazine-piperidine) | Polymeric | 70624-18-9 | — |
How to choose: HALS are 2,2,6,6-tetramethylpiperidine radical scavengers that regenerate to protect polymers and coatings from UV and thermal oxidation. They are grouped by molecular weight and structure, which sets mobility versus permanence: monomeric grades (770, 292) diffuse quickly for fast protection but migrate and extract more readily; oligomeric and polymeric grades (2020, 622, 944 and the oligomeric triazine) resist volatilization and extraction for long-term durability in thick sections and demanding outdoor exposure. The N-alkoxy NOR-HALS grade (123) carries lower basicity, improving compatibility with acid-cure coatings and flame-retarded or agrochemical-exposed systems where basic HALS can be neutralized.
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A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Cross-reference: comparable to Chimassorb 2020 (a BASF product): the same registered oligomeric triazine HALS, CAS 192268-64-7. Oligomeric grades differ in molecular-weight distribution, so confirm suitability in your system; RawSource is independent of BASF. The RawSource TDS and lot CoA govern.
HALS-2020 is a high-molecular-weight oligomeric hindered amine light stabilizer combining excellent permanence with high efficiency in polyolefins and films, comparable to Chimassorb 2020. Identity: CAS 192268-64-7.
What it is
HALS-2020 (CAS 192268-64-7) is an oligomeric aminoether/triazine-piperidine. Its high molecular weight gives non-volatility and migration resistance while delivering very high stabilizing efficiency per unit weight.
How it protects against UV
It scavenges UV-generated radicals through the regenerated nitroxyl cycle. The oligomeric structure balances permanence with mobility, so it performs strongly in thin films and demanding outdoor parts.
Applications
HALS-2020 is used in polyolefin films, fibers, tapes and outdoor parts where high efficiency and permanence are both needed, with a UV absorber. Compare HALS-944 and HALS-622.
Forms, grades and handling
HALS-2020 is supplied as a polymeric powder/granule in bags and bulk. Properties are typical reference values; the Certificate of Analysis (CoA) for the lot you buy governs. Brand names appear only as nominative cross-references to the generic equivalent we supply — RawSource is not affiliated with those brand owners. Handle per the current Safety Data Sheet (SDS); each lot ships with CoA, TDS and SDS.
Bulk supply and RFQ
RawSource sources HALS-2020 direct from producers in bulk, with CoA, TDS and SDS per lot. Tell us your polymer, part thickness and service life, the chemical environment (acidic, flame-retarded, agrochemical), and whether you need a complete UV-absorber-plus-HALS package, and we will quote it. See the full range and selection logic in the HALS guide.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Chemical / class | Hindered amine light stabilizer (oligomeric) |
| HALS type | Oligomeric (high-MW) |
| Permanence | Non-volatile; high efficiency |
| Comparable to | Chimassorb 2020 (nominative reference; generic equivalent) |
| CAS Number | 192268-64-7 |
| Molecular Formula | C40H77N9 |
| Molecular Weight | 684.1 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU): Not determined from public registry
- EC number: 606-265-4
TSCA Inventory flag XU: a substance exempt from reporting under the Chemical Data Reporting Rule (40 CFR 711) (EPA flag legend).
TSCA Inventory flag PMN: a commenced PMN (premanufacture notice) substance (EPA flag legend).
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is HALS-2020 used for?
HALS-2020 (CAS 192268-64-7) is a high-molecular-weight oligomeric hindered amine light stabilizer for polyolefin films, fibers, tapes and outdoor parts, combining permanence with high efficiency. It is comparable to Chimassorb 2020.
How is bulk HALS-2020 supplied and quoted?
RawSource supplies HALS-2020 in bulk with CoA, TDS and SDS per lot. Pricing is quote-based on grade and volume; submit an RFQ with your polymer, service life and environment.
What is the REACH and TSCA regulatory status of HALS-2020 Light Stabilizer (High-Molecular-Weight Triazine HALS)?
HALS-2020 Light Stabilizer (High-Molecular-Weight Triazine HALS) (CAS 192268-64-7) is listed as Active on the U.S. EPA TSCA Inventory; its REACH registration status is not determined from the public ECHA registry.
Is there a Chimassorb 2020 equivalent?
HALS-2020 carries the same registered oligomeric triazine HALS chemistry documented for Chimassorb 2020 (CAS 192268-64-7). It is not a match for Chimassorb 119, which is a different registered substance (CAS 106990-43-6). Confirm suitability in your own compound before switching. Chimassorb is a BASF brand; RawSource is independent of BASF.