4197-07-3 Chromotrope 2R C.I. Acid Red 29 (7CI) C.I. Acid Red 29, disodium salt (8CI) Disodium 4,5-dihydroxy-3-phenylazonaphthalene-2,7-disulphonate 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-(phenylazo)-, disodium salt C.I. 16570 C.I. Acid Red 29 Acid Chromotrope 2R Acid Red 29 Acilan chromotrope RR Brasilan Fast fuchsine G Chromotrope 2R (6CI) Chromotrope Red 2R Cromatrope 2R EINECS 224-085-0 Fast fuchsin G Fast fuchsine G Hispacid fuchsin G NSC 7829 C.I. Acid Red 29, disodium salt CAS 4197-07-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4197-07-3 |
| Molecular Formula | C16H26N2O8S2 2*Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4197-07-3 Chromotrope 2R C.I. Acid Red 29 (7CI) C.I. Acid Red 29, disodium salt (8CI) Disodium 4,5-dihydroxy-3-phenylazonaphthalene-2,7-disulphonate 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-(phenylazo)-, disodium salt C.I. 16570 C.I. Acid Red 29 Acid Chromotrope 2R Acid Red 29 Acilan chromotrope RR Brasilan Fast fuchsine G Chromotrope 2R (6CI) Chromotrope Red 2R Cromatrope 2R EINECS 224-085-0 Fast fuchsin G Fast fuchsine G Hispacid fuchsin G NSC 7829 C.I. Acid Red 29, disodium salt (CAS 4197-07-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C16H26N2O8S2 2*Na. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C16H26N2O8S2 2*Na |
| Molecular Weight | 461.50 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Chromotrope Standards
Recommended Standards
- 4-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-N,N-bis(2-hydroxyethyl)benzenesulfonamide (CAS 293326-14-4)
- (E)-N-(4-fluorophenyl)-3-(4-isobutylphenyl)acrylamide (CAS 329777-54-0)
- 3-[3,5-Bis(trifluoromethyl)phenyl]-5-(2,3-dihydro-5-benzofuranyl)-1,2,4-oxadiazole (CAS 685505-07-1)
- trans-tert-Butyl 4-((tert-butoxycarbonyl)oxy)-3-fluoropiperidine-1-carboxylate (CAS 2101206-83-9)
- Sarolaner (CAS 1398609-39-6)
- 3-Bromo-6-nitro-1H-indazole-4-carboxylic acid (CAS 885519-63-1)
- Semaglutide impurity 268 (CAS CATO-C4X-2226268)
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