Biotin-PEG8-NHS ester CAS 2143968-03-8
| CAS No. | 2143968-03-8 |
| Molecular Formula | C33H56N4O14S |
| Molecular Weight | 764.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Biotin-PEG8-NHS ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Biotin-PEG8-NHS ester (CAS 2143968-03-8) is a high-purity analytical reference standard with the molecular formula C33H56N4O14S and a molecular weight of 764.88 g/mol.
Based on its molecular formula C33H56N4O14S, Biotin-PEG8-NHS ester contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 764.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C33H56N4O14S |
| Molecular Weight | 764.88 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Biotin Standards
- Biotin-PEG11-amine (CAS 1418022-42-0)
- (+)-Biotin-PEG11-NH2 (+)-Biotin-PEG11-amine 604786-74-5 (CAS 604786-74-5)
- PC Biotin-PEG3-alkyne (CAS 1869922-24-6)
- N-Biotin-N-bis(PEG4-acid) (CAS 1964503-35-2)
- Biotin-PEG6-Thalidomide (CAS 2144775-48-2)
- Biotin-PEG11-azide (CAS 2276672-04-7)
- 956494-20-5 alpha-Biotin-omega-azido 23(ethylene glycol) (CAS 956494-20-5)
- PC-Biotin-PEG4-NHS carbonate (CAS 2055198-03-1)
Recommended Standards
- Methyl 2-(diphenylphosphanyl)-4-((13-oxo-17-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)-3,6,9-trioxa-12-azaheptadecyl)carbamoyl)benzoate (CAS 851668-13-8)
- Gadopiclenol Impurity 3 (CAS 2410182-15-7)
- 1-3-4-6-Tetra-O-acetyl-2-(2-3-4-tri-O-benzyl-α-L-fucopyranosyl)-α-D-galactopyranose (CAS 56889-55-5)
- [4-[[(2S)-2-[[(2S)-2-[6-(2,5-dioxopyrrol-1-yl)hexanoylamino]-3-methyl-butanoyl]amino]-5-ureido-pentanoyl]amino]phenyl]methyl N-[2-(tert-butoxycarbonylamino)ethyl]carbamate (CAS 1616727-22-0)
- N,N',N''-(nitrilotris(ethane-2,1-diyl))tris(2,2,2-trifluoroacetamide) (CAS 207569-16-2)
- Levocabastine Impurity 11 (CAS 577036-07-8)
- N-[4-(Heptyloxy)benzyl]-3,4-dimethylaniline (CAS 1040689-50-6)
- Lefamulinum Impurity 47 (CAS CATO-C4X-304747)
- (3-Methyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-6-yl)-acetic acid ethyl ester (CAS 571917-31-2)
- 2-(Iodomethyl)octahydrobenzofuran (CAS 1643386-07-5)
- 7-Methoxychroman-4-one (CAS 42327-52-6)
- 5-(chlorosulfonyl)-2-ethylbenzoic acid (CAS 866358-16-9)
- 4-(Cyclopropylmethyl)-2-hydroxybenzaldehyde (CAS 1243372-92-0)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
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