21983-72-2 3,3-Dimethoxy-2-oxobutane 3,3-dimethoxybutan-2-one CAS 21983-72-2
| CAS No. | 21983-72-2 |
| Molecular Formula | C6H12O3 |
| Molecular Weight | 132.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
21983-72-2 3,3-Dimethoxy-2-oxobutane 3,3-dimethoxybutan-2-one (CAS 21983-72-2), molecular formula C6H12O3 and molecular weight 132.16 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 21983-72-2 3,3-Dimethoxy-2-oxobutane 3,3-dimethoxybutan-2-one (C6H12O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 132.16 g/mol, it falls into the low-molecular-weight range.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H12O3 |
| Molecular Weight | 132.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1963 |
Related Dimethoxy Standards
- (2E)-4,4-Dimethoxy-2-buten-1-ol (CAS 152522-71-9)
- N,2-dimethoxy-N-methylacetamide (CAS 132289-57-7)
- 1,3-Dimethoxy-2-methylpropan-2-amine (CAS 130874-19-0)
- 2,3-Dimethoxy-2-methylpropan-1-amine (CAS 1479290-66-8)
- 1,1-Dimethoxy-n-methylpropan-2-amine (CAS 65765-12-0)
- 1,3-Dimethoxy-N-methylpropan-2-amine (CAS 78531-30-3)
- 1,1-Dimethoxy-2-butanol (CAS 7472-25-5)
- 1,1-Dimethoxy-2-methylpropan-2-ol (CAS 55314-33-5)
Recommended Standards
- α-Terpinene-D8 DISCONTINUED. Please see T117507 (CAS 87555-85-9)
- (S)-(+)-2,2-Dimethyl-1,3-dioxolane-4-methanol (s)-(+)-2,3-o-isopropylideneglycerol 1,2-o-iso-propylidene-sn-glycerol s-glycerol acetonide (s)-(+)-1,2-isopropylideneglycerol 1,2-o-isopropylidene-sn-glycerine (s)-2,2-dimethyl-1,3-dioxolane-4-methanol s-(+)-(2,2-dimethyl-[1,3]dioxolan-4-yl)-methanol (s)-(+)-1,2-o-isopropylideneglycerol 1,2-isopropylidene-sn-glycerol 1,2-o-isopropylidene-d-glycerol (s)-2,2-dimethyl 4-hydroxymethyl-1,3-dioxolane isopropylideneglycerol (s)-(+)-1,2-o- 22323-82-6 (CAS 22323-82-6)
- tert-Butyl Carbazate (CAS 870-46-2)
- Methyl 4-methoxybutanoate (CAS 29006-01-7)
- 1-(4-Methyl-2-(4-methylpiperazin-1-yl)thiazol-5-yl)ethan-1-one (CAS 878085-04-2)
- 2-[3,4-Dihydro-2(1H)-isoquinolinyl]nicotinic acid (CAS 250739-09-4)
- 3-Methyl Isonicotinic Acid-d6 (CAS 1346599-31-2)
- 3-(3-Bromophenyl)-6-fluoro-4-methylcoumarin (CAS 527751-32-2)
- N-MEthyl-6-piperidin-3-ylpyridine-2-carboxamide dihydrochloride (CAS 1858241-04-9)
- 4-Chloro-2-Methylphenol (CAS 1570-64-5)
- 1-(Tetrahydro-2H-pyran-2-yl)-5-(trifluoromethyl)-1H-indazole-4-carbaldehyde (CAS 2760355-53-9)
- 3-Chloro-N-[4-(4-chlorophenyl)-1,3-thiazol-2-yl]-5-(trifluoromethyl)pyridin-2-amine (CAS 338409-29-3)
- 3-(2-Aminoethyl)-1-ethylpyridin-2(1H)-one (CAS 1781579-47-2)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
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