(1R,2S,3R,4S)-1,4-diamino-5-bromo-1,2,3,4-tetrahydronaphthalene-2,3-diol CAS 1998128-32-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1998128-32-7
Molecular FormulaC10H13BrN2O2
Molecular Weight273.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1R,2S,3R,4S)-1,4-diamino-5-bromo-1,2,3,4-tetrahydronaphthalene-2,3-diol CAS 1998128-32-7 chemical structure

Description

As a certified reference material (CRM), (1R,2S,3R,4S)-1,4-diamino-5-bromo-1,2,3,4-tetrahydronaphthalene-2,3-diol 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.

(1R,2S,3R,4S)-1,4-diamino-5-bromo-1,2,3,4-tetrahydronaphthalene-2,3-diol (CAS 1998128-32-7), molecular formula C10H13BrN2O2 and molecular weight 273.13 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, bromine substitution, (1R,2S,3R,4S)-1,4-diamino-5-bromo-1,2,3,4-tetrahydronaphthalene-2,3-diol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 273.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

Physical & Chemical Properties

Molecular FormulaC10H13BrN2O2
Molecular Weight273.13 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Halogen ContentBr-containing
Nitrogen Atoms2

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