25931-47-9 Poly(N(epsilon)-benzyloxycarbonyl-L-lysine) L-Lysine, N6-((phenylmethoxy)carbonyl)-, homopolymer NSC 118116 Poly(epsilon-benzyloxycarbonyl-L-lysine) CAS 25931-47-9

Purity 97%+In StockPharmaceutical Standards
CAS No.25931-47-9
Molecular FormulaC14H20N2O4
Molecular Weight280.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

25931-47-9 Poly(N(epsilon)-benzyloxycarbonyl-L-lysine) L-Lysine, N6-((phenylmethoxy)carbonyl)-, homopolymer NSC 118116 Poly(epsilon-benzyloxycarbonyl-L-lysine) CAS 25931-47-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 25931-47-9 Poly(N(epsilon)-benzyloxycarbonyl-L-lysine) L-Lysine, N6-((phenylmethoxy)carbonyl)-, homopolymer NSC 118116 Poly(epsilon-benzyloxycarbonyl-L-lysine).

25931-47-9 Poly(N(epsilon)-benzyloxycarbonyl-L-lysine) L-Lysine, N6-((phenylmethoxy)carbonyl)-, homopolymer NSC 118116 Poly(epsilon-benzyloxycarbonyl-L-lysine) (CAS 25931-47-9) is a high-purity analytical reference standard with the molecular formula C14H20N2O4 and a molecular weight of 280.32 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 25931-47-9 Poly(N(epsilon)-benzyloxycarbonyl-L-lysine) L-Lysine, N6-((phenylmethoxy)carbonyl)-, homopolymer NSC 118116 Poly(epsilon-benzyloxycarbonyl-L-lysine) is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 280.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC14H20N2O4
Molecular Weight280.32 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Nitrogen Atoms2

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