Methyl 3-amino-2-thiophenecarboxylate methyl-3-amino-2-thiophene carboxylate 3-aminothiophen-2-carboxylic acid methyl ester methyl 3-aminothiophene-2-carboxylate methyl-3-amino-2-thiophene formate 3-aminothiophene-2-carboxylic acid methyl ester 3-amino-thiophene-2-carboxylic acid methyl ester 3-amino-2-thiophenecarboxylic acid methyl ester 3-amino-2-methoxycarbonylthiophene 3-aminothiophene-2-carboxylic acidmethyl ester methyl-3-aminothiophene-2-carboxylate methyl 3-amino-2-thiophene carboxylate methyl-3-amino-thiophene-2-carboxylate methyl-3-amino-2-thiophene-carboxylate 22288-78-4 CAS 22288-78-4

Purity 97%+In StockPharmaceutical Standards
CAS No.22288-78-4
Molecular FormulaC6H11NO2S
Molecular Weight161.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 3-amino-2-thiophenecarboxylate
methyl-3-amino-2-thiophene carboxylate
3-aminothiophen-2-carboxylic acid methyl ester
methyl 3-aminothiophene-2-carboxylate
methyl-3-amino-2-thiophene formate
3-aminothiophene-2-carboxylic acid methyl ester
3-amino-thiophene-2-carboxylic acid methyl ester
3-amino-2-thiophenecarboxylic acid methyl ester
3-amino-2-methoxycarbonylthiophene
3-aminothiophene-2-carboxylic acidmethyl ester
methyl-3-aminothiophene-2-carboxylate
methyl 3-amino-2-thiophene carboxylate
methyl-3-amino-thiophene-2-carboxylate
methyl-3-amino-2-thiophene-carboxylate
22288-78-4 CAS 22288-78-4 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 Methyl 3-amino-2-thiophenecarboxylate methyl-3-amino-2-thiophene carboxylate 3-aminothiophen-2-carboxylic acid methyl ester methyl 3-aminothiophene-2-carboxylate methyl-3-amino-2-thiophene formate 3-aminothiophene-2-carboxylic acid methyl ester 3-amino-thiophene-2-carboxylic acid methyl ester 3-amino-2-thiophenecarboxylic acid methyl ester 3-amino-2-methoxycarbonylthiophene 3-aminothiophene-2-carboxylic acidmethyl ester methyl-3-aminothiophene-2-carboxylate methyl 3-amino-2-thiophene carboxylate methyl-3-amino-thiophene-2-carboxylate methyl-3-amino-2-thiophene-carboxylate 22288-78-4.

Methyl 3-amino-2-thiophenecarboxylate methyl-3-amino-2-thiophene carboxylate 3-aminothiophen-2-carboxylic acid methyl ester methyl 3-aminothiophene-2-carboxylate methyl-3-amino-2-thiophene formate 3-aminothiophene-2-carboxylic acid methyl ester 3-amino-thiophene-2-carboxylic acid methyl ester 3-amino-2-thiophenecarboxylic acid methyl ester 3-amino-2-methoxycarbonylthiophene 3-aminothiophene-2-carboxylic acidmethyl ester methyl-3-aminothiophene-2-carboxylate methyl 3-amino-2-thiophene carboxylate methyl-3-amino-thiophene-2-carboxylate methyl-3-amino-2-thiophene-carboxylate 22288-78-4 (CAS 22288-78-4) is a high-purity analytical reference standard with the molecular formula C6H11NO2S and a molecular weight of 161.22 g/mol.

Structurally, Methyl 3-amino-2-thiophenecarboxylate methyl-3-amino-2-thiophene carboxylate 3-aminothiophen-2-carboxylic acid methyl ester methyl 3-aminothiophene-2-carboxylate methyl-3-amino-2-thiophene formate 3-aminothiophene-2-carboxylic acid methyl ester 3-amino-thiophene-2-carboxylic acid methyl ester 3-amino-2-thiophenecarboxylic acid methyl ester 3-amino-2-methoxycarbonylthiophene 3-aminothiophene-2-carboxylic acidmethyl ester methyl-3-aminothiophene-2-carboxylate methyl 3-amino-2-thiophene carboxylate methyl-3-amino-thiophene-2-carboxylate methyl-3-amino-2-thiophene-carboxylate 22288-78-4 (C6H11NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 161.22 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC6H11NO2S
Molecular Weight161.22 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1963
Nitrogen Atoms1
Sulfur Atoms1

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