Cyclo[3-?(2-?naphthalenyl)?-?L-?alanylglycyl-?D-?tyrosyl-?L-?arginyl-?L-?arginyl] CAS 606968-52-9
| CAS No. | 606968-52-9 |
| Molecular Formula | C36H47N11O6 |
| Molecular Weight | 729.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Cyclo[3-?(2-?naphthalenyl)?-?L-?alanylglycyl-?D-?tyrosyl-?L-?arginyl-?L-?arginyl] (CAS 606968-52-9), molecular formula C36H47N11O6 and molecular weight 729.83 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Cyclo[3-?(2-?naphthalenyl)?-?L-?alanylglycyl-?D-?tyrosyl-?L-?arginyl-?L-?arginyl] is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 729.83 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Formula | C36H47N11O6 |
| Molecular Weight | 729.83 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 11 |
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- Cyclo-Somatostatin (CAS 84211-54-1)
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- Cyclo(-Arg-Ala-Asp-D-Phe-Lys) (CAS 756500-23-9)
Recommended Standards
- Amoxicillin EP Impurity J(See C4X-11489) (CAS CATO-C4X-114810)
- [Met5,Arg6] Enkephalin (CAS 76310-14-0)
- Lead(II) Phthalocyanine (purified by sublimation) (CAS 15187-16-3)
- N,N-bis(4-(dibenzo[b,d]furan-4-yl)phenyl)-[1,1':4',1''-terphenyl]-4-amine (CAS 1198399-61-9)
- 6-Methoxy-2-(4-methoxyphenyl)-3-methyl-1-(phenylsulfonyl)-1H-indole (CAS 185146-15-0)
- Ethyl 5-chloro-1H-indazole-3-carboxylate (CAS 1081-05-6)
- 6-Chloro-2-(methoxymethyl)thiazolo[5,4-c]pyridine (CAS 2821785-14-0)
- Tributyl(methyl)stannane (CAS 1528-01-4)
- Benzo[c]isothiazol-3-yl benzoate (CAS 63285-89-2)
- 2-(Thiophen-2-ylmethylene)hydrazine-1-carbothioamide (CAS 5351-91-7)
- 6-Amino-2-chloropyrimidine-4-carbonitrile (CAS 64376-18-7)
- 4-Methyl-6-(4-methylpiperazin-1-yl)pyridin-3-amine (CAS 1216233-69-0)
- 1-(Tetrahydro-2H-thiopyran-4-yl)-1H-pyrazol-5-amine (CAS 1249031-61-5)
- Semaglutide impurity 29 (CAS 1188328-22-4)
Why CATO?
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