Bis-dPEG<SUP>®</SUP><SUB>13</SUB>-NHS ester CAS 1008402-79-6
| CAS No. | 1008402-79-6 |
| Molecular Formula | C38H64N2O21 |
| Molecular Weight | 884.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Bis-dPEG<SUP>®</SUP><SUB>13</SUB>-NHS ester (C38H64N2O21) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 884.92 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Bis-dPEG<SUP>®</SUP><SUB>13</SUB>-NHS ester (CAS 1008402-79-6) is a high-purity analytical reference standard with the molecular formula C38H64N2O21 and a molecular weight of 884.92 g/mol.
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), Bis-dPEG<SUP>®</SUP><SUB>13</SUB>-NHS ester 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 | C38H64N2O21 |
| Molecular Weight | 884.92 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.) | 1988 |
| Nitrogen Atoms | 2 |
Related Bis Standards
- MAL-dPEG<SUP>®</SUP><SUB>11</SUB>-Lipoamide (CAS 1334172-73-4)
- MAL-dPEG-t-boc-hydrazide (CAS 1334169-99-1)
- Bis-dPEG<SUP>®</SUP><SUB>9</SUB>-PFP ester (CAS 1334170-00-1)
- dPEG<SUP>®</SUP><SUB>12</SUB>-SATA (S-acetyl-dPEG<SUP>®</SUP><SUB>12</SUB>-NHS ester) (CAS 1334169-95-7)
- m-dPEG<SUP>®</SUP><SUB>12</SUB>-Lipoamide (CAS 1334172-68-7)
- MAL-dPEG-t-boc-hydrazide (CAS 1334169-98-0)
- Bis-dPEG<SUP>®</SUP><SUB>5</SUB>-PFP ester (CAS 1334177-78-4)
- dPEG<SUP>®</SUP><SUB>8</SUB>-SATA (S-acetyl-dPEG<SUP>®</SUP><SUB>8</SUB>-NHS ester) (CAS 1070798-99-0)
Recommended Standards
- 4',4''',4''''',4'''''''-(Ethene-1,1,2,2-tetrayl)tetrakis(3-fluoro-[1,1'-biphenyl]-4-carboxylicacid) (CAS 1643112-48-4)
- Bis-PEG13-NHS ester (CAS 2221949-00-2)
- N6-(6-Aminohexyl)-FAD (CAS 76748-73-7)
- Heptacarboxylporphyrin I heptamethyl ester (CAS 885267-27-6)
- 2-(Thiophen-3-yl)-1H-imidazole-5-carbaldehyde (CAS 279251-05-7)
- N-(2-Aminoethyl)-4-chlorobenzamide HCl (CAS 94319-79-6)
- 2-((Difluoromethyl)sulfonyl)-N-(furan-2-ylmethyl)-N-(2-(thiophen-2-yl)ethyl)benzamide (CAS 1797318-07-0)
- Benzoic acid, 2,3,4,5-tetrachloro-6-cyano-, methyl ester (CAS 5358-06-5)
- 3-Methyl-1-(6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)-1H-pyrazole-5-carboxylic acid (CAS 1225286-88-3)
- Cimiracemoside D (CAS 290821-39-5)
- 4-Bromo-6-(difluoromethyl)-1H-pyrazolo[3,4-b]pyridine (CAS 2765271-93-8)
- N-(3-Chloro-4-methylphenyl)-1-(hydrazinecarbonyl)formamide (CAS 828273-69-4)
- 8-Amino-N-(2-ethoxyphenyl)-3,4-dihydro-2H-1,4-ethanothieno[2,3-b][1,5]naphthyridine-7-carboxamide (CAS 902041-35-4)
- Fibrinogen-Binding Peptide (CAS 137235-80-4)
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