251303-04-5 5TPM2EB426 Ertiprotafib [USAN:INN] Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-,(alpha R)- (2R)-2-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid Ertiprotafib PTP-112 (2R)-2-(4-(9-Bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-, (alphaR)- UNII-5TPM2EB426 CAS 251303-04-5

Purity 97%+In StockPharmaceutical Standards
CAS No.251303-04-5
Molecular FormulaC31H27BrO3S
Molecular Weight559.51 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

251303-04-5
5TPM2EB426
Ertiprotafib [USAN:INN]
Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-,(alpha R)-
(2R)-2-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid
Ertiprotafib
PTP-112
(2R)-2-(4-(9-Bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid
Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-, (alphaR)-
UNII-5TPM2EB426 CAS 251303-04-5 chemical structure

Description

The occurrence of 251303-04-5 5TPM2EB426 Ertiprotafib [USAN:INN] Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-,(alpha R)- (2R)-2-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid Ertiprotafib PTP-112 (2R)-2-(4-(9-Bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-, (alphaR)- UNII-5TPM2EB426 is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

251303-04-5 5TPM2EB426 Ertiprotafib [USAN:INN] Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-,(alpha R)- (2R)-2-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid Ertiprotafib PTP-112 (2R)-2-(4-(9-Bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-, (alphaR)- UNII-5TPM2EB426 (CAS 251303-04-5), molecular formula C31H27BrO3S and molecular weight 559.51 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 251303-04-5 5TPM2EB426 Ertiprotafib [USAN:INN] Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-,(alpha R)- (2R)-2-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid Ertiprotafib PTP-112 (2R)-2-(4-(9-Bromo-2,3-dimethylnaphtho(2,3-b)thiophen-4-yl)-2,6-dimethylphenoxy)-3-phenylpropionic acid Benzenepropanoic acid, alpha-(4-(9-bromo-2,3-dimethylnaphtho(2,3-b)thien-4-yl)-2,6-dimethylphenoxy)-, (alphaR)- UNII-5TPM2EB426 (C31H27BrO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 559.51 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC31H27BrO3S
Molecular Weight559.51 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)18.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentBr-containing
Sulfur Atoms1

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