Diisobutyl glutarate

CAS

71195-64-7

Catalog Number

ACM71195647

Category

Other Products

Molecular Weight

244.32726

Molecular Formula

C₁₃H₂₄O₄

MSDS COA Spec Sheet

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Specification

Synonyms

diisobutyl glutarate;Diisobutyl AGS;Pentanedioic acid, bis(2-methylpropyl) ester;BIS(2-METHYLPROPYL) PENTANEDIOATE;Glutaric acid diisobutyl ester

Measuring Diisobutyl Glutarate Gas Phase Concentrations

Time vs. concentration curves for DINP (source PVC1), DINCH (source PVC2)and DIBP (source Paint1)

Schossler, Patricia, et al. Science of the Total Environment 409.19 (2011): 4031-4038.

The air concentrations of DINP, DINCH, diisobutyl phthalate (DIBP), diisobutyl adipate (DIBA), diisobutyl succinate (DIBS), and diisobutyl glutarate (DIBG) from field and laboratory emission cell (FLEC) emission studies were investigated. For DINP and DINCH, approximately 50 days were required to reach steady-state values: no concentration decay was observed within four months. In addition, the vapor pressures p and octanol-air partition coefficients K of 37 phthalate and non-phthalate plasticizers were obtained by two different algorithms (EPI Suite and SPARC). The results show that the calculated gas/particle partition coefficients K and fractions can differ significantly due to uncertainties in the predicted p and K values. For most of the investigated compounds, reliable experimental vapor pressures could not be obtained. A rough estimate can be obtained by measuring the emission rates of pure compounds in the microchamber, as shown for di-n-butyl phthalate (DnBP), di(2-ethylhexyl) adipate (DEHA), tri(octyl) trimellitate (TOTM) and DEHP.
The emission chamber measurements were performed in field and laboratory emission chambers equipped with aluminum subunits and installed in a controlled climate chamber at 23 °C and 50 % relative humidity. The airflow was set to 300 mL/min and the four materials were studied over a period of 5 months. Before loading the samples, they were cleaned with acetone and heated to 250 °C for 12 h. Two of the test pieces were 3 mm thick soft PVC samples containing about 17 wt.% DINP (PVC1) or about 17 wt.% DINCH (PVC2) (wt.% = weight percentage). PVC1 was delivered in rolls (1 m × 0.3 m) wrapped in paper. Before testing, the packaged samples were stored in a climate chamber at 23 °C and 50% relative humidity. A circular sample with a diameter of 15 cm was placed in the subunit below the FLEC. Two artists' acrylic paints containing DIBP (Paint 1) and a mixture of DIBA, DIBG and DIBS (Paint 2) were also selected for this study. The paints were applied to glass plates with a thickness of 250 μm and then stored in a climate chamber at 23 °C and 50% r.h. The FLEC was allowed to stand for 24 h before being placed on the painted surface. Blank measurements were performed before testing with clean FLEC, subunit and glass plates.

Toxicological study of diisobutyl glutarate

Substance identification of diisobutyl glutarate

Werschkun, Barbara, and Berlin Wissenschaftsbüro. (2020).

The toxicological basis for the derivation of EU-LCI values for neopentyl glycol, diisobutyl succinate, diisobutyl glutarate, 1,2-dimethoxyethane and 1,2-diethoxyethane was investigated. Toxicological data for five substances were evaluated as a basis for the derivation of EU-LCI values. EU-LCI values are used to characterize the toxicity of volatile organic compounds emitted by construction products. They are defined as concentrations in the indoor environment that may cause effects on human health and are agreed by the EU-LCI Working Group. A harmonized procedure for the derivation of EU-LCI values from toxicological data was also developed.
369 indoor air samples from offices, homes, schools and preschools were analyzed between 2000 and 2006, and diisobutyl glutarate was detected in 4 of them. The maximum concentration found was 710 μg/m3, with an arithmetic mean of 3.4 μg/m3. In another evaluation of 898 samples, both 50% and 90% of diisobutyl glutarate concentrations were less than 2 μg/m Toxicokinetics It can be assumed that diisobutyl glutarate is converted to glutaric acid (glutaric acid) and isobutanol (2-methylpropanol) by carboxylesterases in the nasal epithelium.