Detail of "4197-09-5"

CAS Number:
4197-09-5
Name:
2,7-Naphthalenedisulfonicacid, 3-[2-[4-(acetylamino)phenyl]diazenyl]-4,5-dihydroxy-, sodium salt (1:2)
Superlist Name:
C.I. Acid Violet 6
Molecular Structure:
Formula:
C₁₈H₁₅N₃Na₂O₉S₂
Molecular Weight:
527.42
Synonyms:
2,7-Naphthalenedisulfonicacid, 3-[[4-(acetylamino)phenyl]azo]-4,5-dihydroxy-, disodium salt (9CI);C.I. Acid Violet 6, disodium salt (8CI);Azo Rhodine 8BC;Benzocaprol red;C.I. 16600;Chrome Fast Blue GR;Chromocetil Red 6B;Chromotrope 6B;Erio Carmine 2B;Erio Carmine 2BF supra I;Fast Fuchsin 6B;Fast Fuchsine 6B;Kiton Fuchine 6BC;Tertracid Red 7B;

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Extraction-spectrophotometric method for the determination of betamethasone in pure form and in pharmaceutical formulations: Extraction-spectrophotometric method for the determination of betamethasone in pure form and in pharmaceutical formulations. Amin, A.S.; Issa, Y.M. (Chemistry Department, Faculty of Science, Benha University, Benha, Egypt). Analytical Letters, 30(1), 69-78 (English) 1997 Dekker. CODEN: ANALBP.Several reagents with their cas registry numbers 5850-55-5 and 4197-09-5 are used here. ISSN: 0003-2719. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) A sensitive and rapid extn.-spectrophotometric method for the detn. of betamethasone in bulk and pharmaceuticals was based on the formation of a charge-transfer complex with benzocaprol red (I) and acid Et blue (II). The calibration graph, resulting from the measurement of the absorbance of the chloroform and benzene exts. (10 mL) at 588 and 677 nm using I and II, resp., was linear over the range 0-16 and 0-20 mg mL-1 of betamethasone. The method was in agreement with the British Pharmacopeia (1993) method. .