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

Description

Compared with other compounds in its class, the molecular weight of 461.50 g/mol gives 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 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

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), molecular formula C16H26N2O8S2Na and molecular weight 461.50 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 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 (C16H26N2O8S2Na) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 461.50 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 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.

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

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