2Z69LO3855 638-10-8 3,3-Dimethylacrylic acid ethyl ester 2-Butenoic acid, 3-methyl-, ethyl ester Crotonic acid, 3-methyl-, ethyl ester Ethyl 3-methylcrotonate 4-02-00-01556 (Beilstein Handbook Reference) AI3-32913 BRN 1744854 EINECS 211-319-1 Ethyl beta,beta-dimethylacrylate Ethyl 3,3-dimethylacrylate Ethyl isobutenoate Ethyl isopropylidene acetate Ethyl isopropylideneacetate Ethyl 3-methyl-2-butenoate Ethyl beta-methylcrotonate Ethyl senecioate NSC 61853 NSC 99208 UNII-2Z69LO3855 CAS 638-10-8

Purity 97%+In StockPharmaceutical Standards
CAS No.638-10-8
Molecular FormulaC7H12O2
Molecular Weight128.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2Z69LO3855 638-10-8 3,3-Dimethylacrylic acid ethyl ester 2-Butenoic acid, 3-methyl-, ethyl ester Crotonic acid, 3-methyl-, ethyl ester Ethyl 3-methylcrotonate 4-02-00-01556 (Beilstein Handbook Reference) AI3-32913 BRN 1744854 EINECS 211-319-1 Ethyl beta,beta-dimethylacrylate Ethyl 3,3-dimethylacrylate Ethyl isobutenoate Ethyl isopropylidene acetate Ethyl isopropylideneacetate Ethyl 3-methyl-2-butenoate Ethyl beta-methylcrotonate Ethyl senecioate NSC 61853 NSC 99208 UNII-2Z69LO3855 CAS 638-10-8 chemical structure

Description

2Z69LO3855 638-10-8 3,3-Dimethylacrylic acid ethyl ester 2-Butenoic acid, 3-methyl-, ethyl ester Crotonic acid, 3-methyl-, ethyl ester Ethyl 3-methylcrotonate 4-02-00-01556 (Beilstein Handbook Reference) AI3-32913 BRN 1744854 EINECS 211-319-1 Ethyl beta,beta-dimethylacrylate Ethyl 3,3-dimethylacrylate Ethyl isobutenoate Ethyl isopropylidene acetate Ethyl isopropylideneacetate Ethyl 3-methyl-2-butenoate Ethyl beta-methylcrotonate Ethyl senecioate NSC 61853 NSC 99208 UNII-2Z69LO3855 (CAS 638-10-8) is a high-purity analytical reference standard with the molecular formula C7H12O2 and a molecular weight of 128.17 g/mol.

Structurally, 2Z69LO3855 638-10-8 3,3-Dimethylacrylic acid ethyl ester 2-Butenoic acid, 3-methyl-, ethyl ester Crotonic acid, 3-methyl-, ethyl ester Ethyl 3-methylcrotonate 4-02-00-01556 (Beilstein Handbook Reference) AI3-32913 BRN 1744854 EINECS 211-319-1 Ethyl beta,beta-dimethylacrylate Ethyl 3,3-dimethylacrylate Ethyl isobutenoate Ethyl isopropylidene acetate Ethyl isopropylideneacetate Ethyl 3-methyl-2-butenoate Ethyl beta-methylcrotonate Ethyl senecioate NSC 61853 NSC 99208 UNII-2Z69LO3855 (C7H12O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 128.17 g/mol, it falls into the low-molecular-weight range.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC7H12O2
Molecular Weight128.17 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957

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