4-O-(Carboxymethyl)rifamycin

Product Name
4-O-(Carboxymethyl)rifamycin
CAS No.
13929-35-6
Chemical Name
4-O-(Carboxymethyl)rifamycin
Synonyms
C01848;Nacimycin;Nancimycin;Rifomycin B;NCI-145-604;Rifamycin B CRS;Rifamycin impurity A;Rifaximin EP Impurity B;Rifamycin EP Impurity A;Rifaximin impurity B (EP)
CBNumber
CB3913884
Molecular Formula
C39H49NO14
Formula Weight
755.8
MOL File
13929-35-6.mol
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4-O-(Carboxymethyl)rifamycin Property

Melting point:
300° (dec 160-164°)
alpha 
D20 -11° (methanol)
Boiling point:
730.16°C (rough estimate)
Density 
1.2421 (rough estimate)
refractive index 
1.5350 (estimate)
pka
2.69±0.10(Predicted)
form 
neat
BRN 
604953
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Safety

Toxicity
LD50 in mice (mg/kg): 2040 i.v., >3000 i.p., s.c., and orally (Sensi, 1964)
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
R0900000
Product name
Rifamycin B
Purity
European Pharmacopoeia (EP) Reference Standard
Packaging
r0900000
Price
$190
Updated
2021/12/16
TRC
Product number
R508170
Product name
RifamycinB
Packaging
50mg
Price
$160
Updated
2021/12/16
TRC
Product number
R508170
Product name
RifamycinB
Packaging
500mg
Price
$1295
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
API0009903
Product name
RIFAMYCIN B
Purity
95.00%
Packaging
500MG
Price
$1871.1
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
API0009903
Product name
RIFAMYCIN B
Purity
95.00%
Packaging
50MG
Price
$315
Updated
2021/12/16
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4-O-(Carboxymethyl)rifamycin Chemical Properties,Usage,Production

Uses

A Rifamycin (R508200) derivative as antibacterial agent.

Uses

Rifamycin B (Rifaximin EP Impurity B) is a Rifamycin (R508200) derivative as antibacterial agent.

Purification Methods

Rifamycin B forms yellow needles from *C6H6. Its solubilities are: H2O (0,027%), MeOH (2.62%) and EtOH (0.44%). It has UV max at 223, 304 and 245nm (A 1cm 555, 275 and 220). [Oppolzer & Prelog Helv Chim Acta 56 2287 1973, Oppolzer et al. Experientia 20 336 1964, X-ray: Brufani et al. Experientia 20 339 1964.]

4-O-(Carboxymethyl)rifamycin Preparation Products And Raw materials

Raw materials

Preparation Products

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4-O-(Carboxymethyl)rifamycin Suppliers

J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Fax
86-10-82849933
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Country
China
ProdList
96815
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76
Chemsky(shanghai)International Co.,Ltd.
Tel
021-50135380
Email
shchemsky@sina.com
Country
China
ProdList
32358
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50
ChemStrong Scientific Co.,Ltd
Tel
0755-66853366-
Email
sales@chem-strong.com
Country
China
ProdList
26481
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Shanghai Kewel Chemical Co., Ltd.
Tel
021-64609169-
Fax
021-64609160
Email
kewelchemexp@yahoo.com
Country
China
ProdList
9839
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50
BOC Sciences
Tel
Email
sales@bocsci.com
Country
United States
ProdList
9932
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Hubei Yangxin Medical Technology Co., Ltd.
Tel
Fax
QQ:2853117752
Email
2853117752@qq.com
Country
China
ProdList
15793
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55
Shenzhen SUNGENING Bio-Medical Co., Ltd.
Tel
0755-28967200-8056;0755-28967200-8062
Fax
0755-28967200
Email
hnsale203@sungening.com;wxf@sungening.com
Country
China
ProdList
9606
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Shenzhen Polymeri Biochemical Technology Co., Ltd.
Tel
400-002-6226
Email
sales@biochemall.cn
Country
China
ProdList
54467
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58
BOC Sciences
Tel
16314854226
Email
inquiry@bocsci.com
Country
United States
ProdList
19674
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58
AFINE CHEMICALS LIMITED
Tel
008657185134551
Fax
008657185134895
Email
info@afinechem.com
Country
CHINA
ProdList
15559
Advantage
58

13929-35-6, 4-O-(Carboxymethyl)rifamycinRelated Search:


  • Rifamycin impurity A
  • Rifaximin EP Impurity B
  • Rifaximin impurity B (EP)
  • Rifaximin Impurity 2 (Rifaximin EP Impurity B)
  • Rifamycin, 4-O-(carboxymethyl)-
  • 4-O-(Carboxymethyl)rifamycin
  • Nacimycin
  • Nancimycin
  • NCI-145-604
  • Rifomycin B
  • C01848
  • Rifamycin EP Impurity A
  • Rifaximin EP Impurity B (Rifamycin B)
  • Rifamycin B CRS
  • Rifamycin Impurity 1(Rifamycin EP Impurity A)(Rifamycin B)
  • 13929-35-6
  • C39H49NO14
  • Chiral Reagents
  • Intermediates & Fine Chemicals
  • Pharmaceuticals