# 聚（丙烯酸正丁酯-r-3-(甲基丙烯酰氧)丙基三甲氧基硅烷）无规共聚物 (CAS 56467-21-1)

**CAS:** 56467-21-1  
**PubChem CID:** [121235874](https://pubchem.ncbi.nlm.nih.gov/compound/121235874)  
**Molecular formula:** C22H44O7Si  
**Molar mass:** 448.7 g/mol  
**IUPAC:** 5-O-butyl 1-O-(3-triethoxysilylpropyl) 4-ethyl-2,2-dimethylpentanedioate  
**SMILES:** `CCCCOC(=O)C(CC)CC(C)(C)C(=O)OCCC[Si](OCC)(OCC)OCC`  
**InChIKey:** `WOEWHLCYFHNCCN-UHFFFAOYSA-N`  
**InChI:** `InChI=1S/C22H44O7Si/c1-8-13-15-25-20(23)19(9-2)18-22(6,7)21(24)26-16-14-17-30(27-10-3,28-11-4)29-12-5/h19H,8-18H2,1-7H3`  

## Physicochemical properties

| Parameter | Value |
|---|---|
| PSA | 80.3 Ų |
| Hydrogen bond donors | 0 |
| Hydrogen bond acceptors | 7 |
| Rotatable bonds | 20 |
| Heavy atoms | 30 |

## Synonyms

- 56467-21-1

## Available in the shop

[聚（丙烯酸正丁酯-r-3-(甲基丙烯酰氧)丙基三甲氧基硅烷）无规共聚物 (CAS 56467-21-1) — Shanghai Wanna Polymer](https://molgod.org/sds-cards/%e8%81%9a%ef%bc%88%e4%b8%99%e7%83%af%e9%85%b8%e6%ad%a3%e4%b8%81%e9%85%af-r-3-%e7%94%b2%e5%9f%ba%e4%b8%99%e7%83%af%e9%85%b0%e6%b0%a7%e4%b8%99%e5%9f%ba%e4%b8%89%e7%94%b2%e6%b0%a7%e5%9f%ba%e7%a1%85/)

## Data sources

- [PubChem CID 121235874](https://pubchem.ncbi.nlm.nih.gov/compound/121235874)
- [NIST WebBook](https://webbook.nist.gov/cgi/cbook.cgi?ID=56467-21-1)
- [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query=56467-21-1)

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*Last updated: 2026-09-02 · Generator: MOL-GOD v3.12.33*