da Silva, Paula Porrelli Moreira et al. published their research in Industrial Crops and Products in 2020 | CAS: 659-70-1

Isopentyl 3-methylbutanoate (cas: 659-70-1) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Reference of 659-70-1

Essential oils from Eucalyptus staigeriana F. Muell. ex Bailey and Eucalyptus urograndis W. Hill ex Maiden associated to carboxymethylcellulose coating for the control of Botrytis cinerea Pers. Fr. and Rhizopus stolonifer (Ehrenb.:Fr.) Vuill. in strawberries was written by da Silva, Paula Porrelli Moreira;de Oliveira, Jacqueline;Biazotto, Anaile dos Mares;Parisi, Marise Martins;da Gloria, Eduardo Micoti;Spoto, Marta Helena Fillet. And the article was included in Industrial Crops and Products in 2020.Reference of 659-70-1 This article mentions the following:

The fungi Rhizopus stolonifer (Ehrenb.:Fr.) Vuill. (R. stolonifer (Ehrenb.:Fr.) Vuill.) and Botrytis cinerea Pers. Fr. (B. cinerea Pers. Fr.) are causal agents of important post-harvest diseases in strawberries. For their control, the essential oil extracted from the leaves of Eucalyptus staigeriana Muell. ex Bailey (E. staigeriana F. Muell. ex Bailey) and Eucalyptus urograndis W. Hill ex Maiden (E. urograndis W. Hill ex Maiden) can be a good alternative to the synthetic fungicides. Thus, the antifungal activity of the EOs from E. staigeriana F. Muell. ex Bailey and from E. urograndis W. Hill ex Maiden was evaluated in vitro on the fungi B. cinerea Pers. Fr. and R. stolonifer (Ehrenb.:Fr.) Vuill.. The effects on pathogen morphol. and the in vivo antifungal activity of the EO that presented the highest activity in vitro, associated with CM-cellulose (CMC), were also verified. The chem. composition of the essential oils evaluated was determined The EO from E. staigeriana F. Muell. ex Bailey was the most efficient in the in vitro assays on the two fungi. This EO, whose major compound is limonene, caused dehydration and rupture of the fungal hyphae, suggesting its action is on the cell wall and membrane. The incorporation of this EO to CMC in the curative way reduced the severity of soft rot, caused by R. stolonifer (Ehrenb.:Fr.) Vuill.; nevertheless, it did not present an effect on the inhibition of B. cinerea Pers. Fr.. These results suggest that E. staigeriana F. Muell. ex Bailey EO, associated to CMC coating, can be an alternative to the use of synthetic fungicides for the control of R. stolonifer (Ehrenb.:Fr.) Vuill., mainly. In the experiment, the researchers used many compounds, for example, Isopentyl 3-methylbutanoate (cas: 659-70-1Reference of 659-70-1).

Isopentyl 3-methylbutanoate (cas: 659-70-1) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Reference of 659-70-1

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics