Products 13929-35-6

CAS 13929-35-6 appears in our catalog under these names: Rifaximin EP Impurity B (Rifamycin B), Rifamycin Impurity 1(Rifamycin EP Impurity A)（Rifamycin B), Rifaximin Impurity 2 (Rifaximin EP Impurity B), Rifamycin B, Rifamycin B. Offered by: Chemat Brand, Hubei YoungXin, TRC, GLPBio, Biosynth. Available pack sizes: on request, 10mg, 25mg, 50mg, 100mg, 200mg, 500mg, 5mg.

Rifaximin EP Impurity B (Rifamycin B)
Chemat Brand
  • size: on request
  • Variants: 1
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Rifamycin Impurity 1(Rifamycin EP Impurity A)（Rifamycin B)
Hubei YoungXin
  • size: 10mg, 25mg, 50mg, 100mg
  • Variants: 5
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Rifaximin Impurity 2 (Rifaximin EP Impurity B)
Hubei YoungXin
  • size: 10mg, 25mg, 50mg, 100mg
  • Variants: 5
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Rifamycin B
TRC, Biosynth
  • size: 500mg, 50mg, 10mg, 5mg
  • Variants: 7
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Rifamycin B
GLPBio
  • size: 10mg, 25mg, 50mg, 5mg
  • Variants: 4
from 817.02
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Rifamycin B, ≥95%, ≥95%
Chemat
  • size: 5mg, 10mg, 25mg, 50mg
  • Variants: 4
from 659.60
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Rifamycin B, 95.0%
MedChemExpress
  • size: 5 mg, 10 mg
  • Variants: 2
from 649.42
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Structural formula: {0} (CAS {1})

Rifamycin B is a member of rifamycins, a carboxylic acid, an organic heterotetracyclic compound and an acetate ester. It is a conjugate acid of a rifamycin B(2-).

Source: ChEBI

Identity
Molecular formulaC39H49NO14
Molecular weight755.8 g/mol
IUPAC name2-[[(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-13-acetyloxy-2,15,17,29-tetrahydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-6,23-dioxo-8,30-dioxa-24-azatetracyclo[23.3.1.14,7.05,28]triaconta-1(29),2,4,9,19,21,25,27-octaen-27-yl]oxy]acetic acid
InChIKeySQTCRTQCPJICLD-KTQDUKAHSA-N
SMILESC[C@H]1/C=C/C=C(\C(=O)NC2=CC(=C3C(=C2O)C(=C(C4=C3C(=O)[C@](O4)(O/C=C/[C@@H]([C@H]([C@H]([C@@H]([C@@H]([C@@H]([C@H]1O)C)O)C)OC(=O)C)C)OC)C)C)O)OCC(=O)O)/C

Computed by PubChem (NCBI)

Synonyms: RIFAMYCIN B, Nancimycin, 4-O-(Carboxymethyl)rifamycin, Nacimycin, Rifomycin B, Rifamycin B CRS, RIFAMYCIN B [MI], 4-O-(Carboxymethyl)-Rifamycin, SQTCRTQCPJICLD-KTQDUKAHSA-N, o[2,1-b]furan-9-yl]oxy}acetic acid
Isomers (same molecular formula)
[(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-13-acetyloxy-2,15,17,29-tetrahydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-6,23-dioxo-8,30-dioxa-24-azatetracyclo[23.3.1.14,7.05,28]triaconta-1(29),2,4,9,19,21,25,27-octaen-27-yl] 2-hydroxyacetate C39H49NO14