(-)-Diacetyl-D-tartaric anhydride CAS 70728-23-3
| CAS No. | 70728-23-3 |
| Molecular Formula | C8H8O7 |
| Molecular Weight | 216.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 216.14 g/mol gives (-)-Diacetyl-D-tartaric anhydride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (-)-Diacetyl-D-tartaric anhydride (CAS 70728-23-3), a certified reference material (molecular formula C8H8O7, MW 216.14 g/mol) for analytical method development and quality control.
Owing to a carbohydrate-derived structure, (-)-Diacetyl-D-tartaric anhydride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 216.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (-)-Diacetyl-D-tartaric anhydride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H8O7 |
| Molecular Weight | 216.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
Related Diacetyl Standards
- 2,7-Diacetyl-1,8-naphthyridine (CAS 874379-28-9)
- N,2-diacetyl-N-hydroxybenzamide (CAS 56523-72-9)
- 2,6-Diacetyl-3,5-dimethylphenol (CAS 66634-65-9)
- 1,3-Diacetyl-1H-indole-6-carbonitrile (CAS 1091576-28-1)
- 1,5-Diacetyl-1,3,5-triazinane-2,4-dione (CAS 86320-44-7)
- 3,5-Diacetyl-1,4-Dihydro-2,6-Lutidine (CAS 1079-95-4)
- 2,6-Diacetyl-2,4,6,8-tetraazabicyclo[3.3.1]nonane-3,7-dione (CAS 413572-54-0)
- 6,6’-Diacetyl-2,2’-bipyridine (CAS 49669-27-4)
Recommended Standards
- 2,2-difluoro-7-(hydroxymethyl)-2H-1,3-benzodioxole-4-carbaldehyde (CAS 1955531-94-8)
- (2E,5E)-2,5-bis((hydroxymethoxy)methylene)furan-3,4(2H,5H)-dione (CAS 2004-74-2)
- 2,3-Difluoro-5-(methoxycarbonyl)benzoic acid (CAS 1822660-61-6)
- 2-(2,2-Difluoro-2H-1,3-benzodioxol-4-yl)acetic acid (CAS 531508-33-5)
- N-(2,6-Dimethylphenyl)-2,5-dimethylaniline (CAS 949161-08-4)
- 4-Chloro-2,6-dimethylnicotinic acid (CAS 56022-09-4)
- 3-Nitro-4-(trifluoromethyl)benzene-1-sulfonyl chloride (CAS 301856-45-1)
- 4-Bromo-1-(chloromethoxy)-2-fluorobenzene (CAS 1512355-04-2)
- 2-(2,3,4-Trichlorophenyl)quinoline-4-carboxylic acid (CAS 329265-48-7)
- rel-(2R,4s,6S)-4-iodo-2,6-dimethyl-tetrahydropyran (CAS 2095792-92-8)
- Methyl (E)-3-((2,4-dichlorophenyl)amino)-2-(4-methoxybenzamido)acrylate (CAS 245039-26-3)
- N-(3-(1H-Pyrrolo[2,3-b]pyridin-1-yl)propyl)-5-chlorothiophene-2-sulfonamide (CAS 1797958-75-8)
- 8-[(E)-2-(Phenylmethylidene)hydrazin-1-yl]quinoline (CAS 82633-14-5)
- [pGlu] Semaglutide (CAS CATO-C4X-2226288)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com