Cetylpyridinium CAS 7773-52-6
| CAS No. | 7773-52-6 |
| Molecular Formula | C21H38N |
| Molecular Weight | 304.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Cetylpyridinium (CAS 7773-52-6) is a high-purity analytical reference standard with the molecular formula C21H38N and a molecular weight of 304.53 g/mol.
Based on its molecular formula C21H38N, Cetylpyridinium contains a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 304.53 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C21H38N |
| Molecular Weight | 304.53 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
Related Cetylpyridinium Standards
- Cetylpyridinium Chloride Impurity 4 (CAS CATO-C4X-27874)
- Cetylpyridinium Chloride Impurity 1 (CAS CATO-C4X-27871)
- Cetylpyridinium Chloride Impurity 2 (CAS CATO-C4X-27872)
- Cetylpyridinium Chloride Impurity 3 (CAS CATO-C4X-27873)
- Cetylpyridinium Chloride Monohydrate (CAS 6004-24-6)
- Cetylpyridinium Chloride (CAS 123-03-5)
Recommended Standards
- 5-((4-Bromo-2-chlorophenoxy)methyl)-1,3,4-oxadiazol-2-amine (CAS 1706453-87-3)
- 2-(3-Bromo-7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)acetic acid (CAS 2387596-07-6)
- Ethyl 5-bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylate (CAS 1587708-32-4)
- 2-(5-Chloro-2-(difluoromethoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2609682-60-0)
- Benzyl 4-(2-chloroacetyl)-1,4-diazepane-1-carboxylate (CAS 1353977-95-3)
- 2-methyl-octahydroimidazolidino[1,5-a]piperazine-1,3-dione hydrochloride (CAS 1375847-55-4)
- 2-(2-(2-((1-Bromonaphthalen-2-yl)oxy)acetyl)hydrazine-1-carbonyl)benzoic acid (CAS 328025-20-3)
- tert-Butyl 3-((4-fluorophenyl)sulfonyl)pyrrolidine-1-carboxylate (CAS 887587-51-1)
- cis-Atovaquone-d5 (contains 10% trans isomer) (CAS 1217612-80-0)
- (3-ethoxy-5-methyl-4-pyridinyl)boronic acid (3-ethoxy-5-methyl-4-pyridyl)boronic acid (3-ethoxy-5-methyl-pyridin-4-yl)boronic acid (3-ethoxy-5-methylpyridin-4-yl)boronic acid 1315353-36-6 3-Ethoxy-5-methylpyridine-4-boronic acid (CAS 1315353-36-6)
- Methyl 2-({2-[(4-methoxyphenyl)carbamoyl]thiophen-3-yl}sulfanyl)acetate (CAS 251097-13-9)
- Ranitidine Impurity 21 (CAS 112233-25-7)
- 1-(4,5-Dihydro-1H-furo[2,3-g]indazol-7-yl)ethanone (CAS 372163-81-0)
- Semaglutide impurity 202 (CAS CATO-C4X-2226202)
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