RifamycinS , 97% , 13553-79-2

Synonym(s):
1,4-Dideoxy-1,4-dihydro-1,4-dioxorifamycin

CAS NO.：13553-79-2

Empirical Formula: C37H45NO12

Molecular Weight: 695.75

MDL number: MFCD06198807

EINECS: 236-938-4

PRODUCT Properties

• Melting point: 179-181°C (dec.)
• alpha: D20 +476° (c = 0.1 in methanol)
• Boiling point: 700.89°C (rough estimate)
• Density: 1.2387 (rough estimate)
• refractive index: 1.6630 (estimate)
• storage temp.: -20°C Freezer
• solubility: Benzene (Slightly), Chloroform (Slightly), Methanol (Slightly)
• form: Solid
• pka: 3.85±0.70(Predicted)
• color: Orange to Dark Orange
• λmax: 390nm(MeOH)(lit.)
• Merck: 14,8217
• InChIKey: BTVYFIMKUHNOBZ-ODRIEIDWSA-N
• SMILES: C1[C@H](C)[C@H](O)[C@@H](C)[C@H](O)[C@H](C)[C@H](C(=O)OC)[C@@H](C)[C@H](OC)C=CO[C@]2(C)C(=O)C3C4C(=O)C=C(NC(=O)C(C)=CC=1)C(=O)C=4C(O)=C(C)C=3O2 |c:38,t:21,40|

Description and Uses

Rifamycin S (Rifaximin EP Impurity E) is a semi-synthetic antibiotic.

Safety

• Symbol(GHS): GHS08
• Signal word: Warning
• Hazard statements: H371
• Precautionary statements: P501-P260-P270-P264-P308+P311-P405
• RTECS: KD1925000
• HS Code: 2941.90.1050
• Toxicity: LD50 in mice (mg/kg): 122 i.v.; 258 i.p.; 3000 orally (Sensi, 1964)