128139-51-5 2,2'-((2-((Carboxymethyl)(2-((carboxymethyl)amino)-ethyl)amino)ethyl)azanediyl)diacetic acid 3476AD C12H21N3O8 CAS 128139-51-5
| CAS No. | 128139-51-5 |
| Molecular Formula | C12H21N3O8 |
| Molecular Weight | 335.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 128139-51-5 2,2'-((2-((Carboxymethyl)(2-((carboxymethyl)amino)-ethyl)amino)ethyl)azanediyl)diacetic acid 3476AD C12H21N3O8 (CAS 128139-51-5), a pharmacopoeial impurity reference standard (molecular formula C12H21N3O8, MW 335.31 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, 128139-51-5 2,2'-((2-((Carboxymethyl)(2-((carboxymethyl)amino)-ethyl)amino)ethyl)azanediyl)diacetic acid 3476AD C12H21N3O8 (C12H21N3O8) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 335.31 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), 128139-51-5 2,2'-((2-((Carboxymethyl)(2-((carboxymethyl)amino)-ethyl)amino)ethyl)azanediyl)diacetic acid 3476AD C12H21N3O8 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 | C12H21N3O8 |
| Molecular Weight | 335.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 3 |
Related Carboxymethyl Standards
- 4-(Carboxymethyl-amino)-piperidine-1-carboxylic acid benzyl ester (CAS 1353986-69-2)
- Carboxymethyl-Phe-Leu-OH (CAS 81109-85-5)
- (2S)-2-((3-((Carboxymethyl)amino)-5-hydroxy-5-(hydroxymethyl)-2-methoxycyclohex-2-en-1-ylidene)amino)-3-hydroxypropanoic acid (CAS 73112-73-9)
- 4-[5-(Carboxymethyl)-4-phenyl-1,3-thiazol-2-yl]benzoic acid (CAS 861209-67-8)
- 5-(Carboxymethyl)-1-(4-(trifluoromethoxy)phenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 439095-12-2)
- 3-(Carboxymethyl)-2-(4-chlorophenyl)-quinoline-4-carboxylic acid (CAS 43071-32-5)
- 6-Ethyl 2-[[(carboxymethyl)thio]methyl]-1,4-dihydro-5-methyl-4-oxothieno[2,3-d]pyrimidine-6-carboxylate (CAS 732291-84-8)
- 2-(4-Carboxymethyl-benzyl)-2-methyl-malonic Acid Diethyl Ester 2-[[4-(Carboxymethyl)phenyl]methyl]-2-methyl-propanedioic Acid 1,3-Diethyl Ester 223123-57-7 4-(2,2-Dicarboethoxy-propyl)phenylacetic Acid (CAS 223123-57-7)
Recommended Standards
- 127074-39-9 2-Nitro-N-(2-nitrophenyl)-N-phenyl-benzenamine Bis-(2-nitrophenyl)phenylamine (CAS 127074-39-9)
- 2-(2’-Hydroxyphenoxy)-4-nitro-benzophenone (CAS 1329834-07-2)
- 3-(Ethoxycarbonyl)-5-methyl-1-(2-methyl-5-nitrophenyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264049-79-7)
- (R)-2-((tert-Butoxycarbonyl)amino)-3-(4-cyano-2-nitrophenyl)propanoic acid (CAS 1447616-03-6)
- Tamoxifen Citrate EP Impurity D Hydrochloride(E-Isomer) (CAS 15917-51-8)
- Baricitinib Impurity 81 (CAS CATO-C4X-226081)
- Mivacurium chloride Impurity 77 HCl (CAS CATO-C4X-137577)
- (E)-1-(4-Chlorophenyl)-3-(4-hydroxy-3-methoxyphenyl)prop-2-en-1-one (CAS 152809-69-3)
- Methyl 2-(4-fluorophenyl)-2-oxoacetate (CAS 156276-23-2)
- 4-((4-Ethylpiperazin-1-yl)methyl)-3-fluorobenzaldehyde (CAS 1443355-20-1)
- 2-Chloro-3-nitroaniline hydrochloride (CAS 1803590-09-1)
- 4-Cyclohexylbutyl-4-O-(a-D-glucopyranosyl)-b-D-glucopyranoside (CAS 181135-57-9)
- 3-(Trifluoromethyl)picolinamide (CAS 22245-85-8)
- Acetyl decapeptide-3 (CAS 935288-50-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com