Lithium citrate CAS 919-16-4
| CAS No. | 919-16-4 |
| Molecular Formula | C6H5Li3O7 |
| Molecular Weight | 209.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Lithium citrate (CAS 919-16-4), molecular formula C6H5Li3O7 and molecular weight 209.92 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Lithium citrate (C6H5Li3O7) contains a carbohydrate-derived structure. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 209.92 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 Formula | C6H5Li3O7 |
| Molecular Weight | 209.92 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, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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Recommended Standards
- Indium(III) phosphate (CAS 14693-82-4)
- 2-Bromoselenophene (CAS 1449-68-9)
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- 1,3-Dichloro-2,2-bis(chloromethyl)propane (CAS 3228-99-7)
- Benzoxonium Chloride (CAS 19379-90-9)
- Methyl 3-(4-chlorophenyl)-1H-indole-2-carboxylate (CAS 1134334-35-2)
- 2-(Difluoromethyl)-4-nitro-5-(trifluoromethoxy)pyridine-3-acetonitrile (CAS 1361890-28-9)
- 2-Hydroxy-5-methyl-N-(2-(methylsulfonamido)ethyl)benzamide (CAS 1157025-63-2)
- 2-(5-Chloro-4-methylpyridin-2-yl)ethan-1-amine (CAS 886365-18-0)
- 2,6-Dichloropyrimidine-4-carbonitrile (CAS 26293-93-6)
- 2,4-Dimethoxy-N-(thiophen-3-ylmethyl)benzenesulfonamide (CAS 1060230-06-9)
- Ethyl 4-Oxotetrahydrofuran-3-carboxylate (CAS 89898-51-1)
- Morpholine Impurity 9 (CAS CATO-C4X-31689)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
Why CATO?
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