(E)-4-methyl-5-((sulfomethyl)amino)-2-(thiazol-2-yldiazenyl)benzoic acid CAS 82138-69-0
| CAS No. | 82138-69-0 |
| Molecular Formula | C12H12N4O5S2 |
| Molecular Weight | 356.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (E)-4-methyl-5-((sulfomethyl)amino)-2-(thiazol-2-yldiazenyl)benzoic acid 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.
CATO supplies (E)-4-methyl-5-((sulfomethyl)amino)-2-(thiazol-2-yldiazenyl)benzoic acid (CAS 82138-69-0), a certified reference material (molecular formula C12H12N4O5S2, MW 356.38 g/mol) for analytical method development and quality control.
(E)-4-methyl-5-((sulfomethyl)amino)-2-(thiazol-2-yldiazenyl)benzoic acid (C12H12N4O5S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Formula | C12H12N4O5S2 |
| Molecular Weight | 356.38 g/mol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Recommended Standards
- PF-06256142, >98% (HPLC) (CAS 1609583-14-3)
- 1-(4-Ethylphenyl)-4-methyl-6-(trifluoromethyl)-1H,2H,3H-pyrrolo[3,2-c]quinoline (CAS 860789-44-2)
- CH5183284 (CAS 1265229-25-1)
- 1,4-Bis[(2-aminoethyl)amino]-5,8-dihydroxy-9,10-anthracenedione (CAS 96555-65-6)
- 2,2'-(Adamantane-1,3-diyl)diacetamide (CAS 56432-73-6)
- Benzyl 2-((5-(3-cyclopropylureido)-1,3,4-thiadiazol-2-yl)thio)acetate (CAS 1171729-47-7)
- 3-(4-Oxopyridin-1(4H)-yl)propanenitrile (CAS 68634-53-7)
- cis-(+/-)-2-[(N-Benzyl-N-methyl)aminomethyl]-1-(3-methoxyphenyl)cyclohexanol, Hydrochloride (CAS 1018989-95-1)
- Ethyl 2-(6-methylimidazo[1,2-a]pyridin-3-yl)acetate (CAS 101820-53-5)
- (Z)-N-(4-Chlorophenyl)-1-[(4-cyano-5-methyl-1,2-thiazol-3-yl)sulfonyl]methanecarbohydrazonoyl cyanide (CAS 338976-83-3)
- 4227-95-6 iodomethane-(13)C stab.,~99 (atom % 13C) (CAS 4227-95-6)
- 4-((2,4-Dimethylphenyl)diazenyl)-3-hydroxynaphthalene-2,7-disulfonic acid (CAS 7481-49-4)
- tert-Butyl (2-amino-4-chloro-5-methylphenyl)carbamate (CAS 579474-54-7)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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