ChemicalBook >> CAS DataBase List >>4-O-(Carboxymethyl)rifamycin
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
- Molecular Weight:
- 755.8
- MDL Number:
- MOL File:
- 13929-35-6.mol
Last updated:2023-05-15 10:43:33
| 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) |
| solubility | DMSO (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly, Sonicated) |
| pka | 2.69±0.10(Predicted) |
| BRN | 604953 |
| Stability | Unstable in solution |
| FDA UNII | 8DDB535DJI |
SAFETY
Risk and Safety Statements
| Toxicity | LD50 in mice (mg/kg): 2040 i.v., >3000 i.p., s.c., and orally (Sensi, 1964) |
|---|
4-O-(Carboxymethyl)rifamycin price More Price(8)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | R0900000 | Rifamycin B European Pharmacopoeia (EP) Reference Standard | 13929-35-6 | r0900000 | $220 | 2024-03-01 | Buy |
| TRC | R508170 | Rifamycin B | 13929-35-6 | 50mg | $160 | 2021-12-16 | Buy |
| TRC | R508170 | Rifamycin B | 13929-35-6 | 500mg | $1295 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | API0009903 | RIFAMYCIN B 95.00% | 13929-35-6 | 500MG | $1871.1 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | API0009903 | RIFAMYCIN B 95.00% | 13929-35-6 | 50MG | $315 | 2021-12-16 | Buy |
4-O-(Carboxymethyl)rifamycin Chemical Properties,Uses,Production
Uses
Rifamycin B (Rifaximin EP Impurity B) is a Rifamycin (R508200) derivative as antibacterial agent.
Uses
A Rifamycin (R508200) derivative as antibacterial agent.
Definition
ChEBI: Rifamycin B is a carboxylic acid, an acetate ester, an organic heterotetracyclic compound and a member of rifamycins. It is a conjugate acid of a rifamycin B(2-).
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
Global( 43)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21689 | 55 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14336 | 58 |
| AFINE CHEMICALS LIMITED | 0571-85134551 18958018566; | info@afinechem.com | China | 15377 | 58 |
| BOC Sciences | +16314854226 | inquiry@bocsci.com | United States | 19743 | 58 |
| Aladdin Scientific | +1-833-552-7181 | sales@aladdinsci.com | United States | 57511 | 58 |
| Guangzhou PI PI Biotech Inc | +86-020-81716320 +86-13602409664 | Sales@pipitech.com | China | 3635 | 55 |
| J & K SCIENTIFIC LTD. | 010-82848833 400-666-7788 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Chemsky（shanghai）International Co.,Ltd. | 021-50135380 | shchemsky@sina.com | China | 32344 | 50 |
| Hangzhou Yuhao Chemical Technology Co., Ltd | 0571-82693216 | info@yuhaochemical.com | China | 9394 | 52 |
13929-35-6(4-O-(Carboxymethyl)rifamycin)Related Search:
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1of4
Rifamycin impurity A
Rifaximin EP Impurity B
Rifamycin, 4-O-(carboxymethyl)-
4-O-(Carboxymethyl)rifamycin
Nacimycin
Nancimycin
NCI-145-604
Rifomycin B
C01848
Rifaximin impurity B (EP)
Rifaximin Impurity 2 (Rifaximin EP Impurity B)
Rifamycin EP Impurity A
Rifaximin EP Impurity B (Rifamycin B)
Rifamycin B CRS
Rifamycin Impurity 1(Rifamycin EP Impurity A)（Rifamycin B)
4-O-(Carboxymethyl)-Rifamycin (Rifaximin Impurity)
Rifaximin EP Impurity B（Rifamycin EP Impurity A）
13929-35-6
C39H49NO14
Chiral Reagents
Intermediates & Fine Chemicals
Pharmaceuticals