Ambrisentan USP Related Compound B
- CAS178306-51-9
- CatalogueRS-A064004
- FormulaC16H16O4
- MW272.3
On this page
Product identification
| Product name | Ambrisentan USP Related Compound B |
|---|---|
| Catalogue No. | RS-A064004 |
| CAS No. | 178306-51-9 |
| Molecular formula | C16H16O4 |
| Molecular weight | 272.3 |
| Availability | In stock— dispatched in about 1–2 weeks |
| Standard type | Impurity Reference Standards |
| Drug substance | Ambrisentan |
| Also known as | 2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid; Ambrisentan; Ambrisentan Impurity 9 |
| Storage | Refer to the certificate of analysis (COA) supplied with each lot |
| Intended use | For laboratory and research use only. Not for human or veterinary use. |
What is stated on the certificate
Content and purity are assigned per lot and stated on the certificate of analysis issued for the batch you receive — they are not a catalogue-level figure. The certificate records the tests performed, the specification applied and the result obtained for that lot.
| Field | Basis |
|---|---|
| Identity | Spectroscopic and chromatographic methods appropriate to the material |
| Purity | Chromatographic purity, area normalisation unless stated otherwise |
| Assay / content | Mass balance, corrected for the stated volatiles and residue |
| Catalogue and batch numbers | RS-A064004 / batch number on the certificate |
| Retest date | Printed on the certificate for the lot supplied |
Frequently asked
What documentation is supplied with this lot?
Is the assigned value given on an “as is” basis?
How should this material be stored?
Do you supply pack sizes other than those listed?
Finding this standard
Buyers reach this compound by CAS number, by catalogue number, through the drug substance it belongs to, or through the type of standard it is. Those routes all start here:
- Other impurities of Ambrisentan
- Impurity Reference Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-A064004
- Request a quotation for RS-A064004
Searching another way? Send the structure, a SMILES string or the pharmacopoeial name — a CAS number is not required for a non-compendial impurity. Write to sales@rssechem.com.
Other standards of Ambrisentan
All 38 further standards are listed here — every link is in the page, not loaded later.
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(R)-Ambrisentan
IN STOCKRS-I009001 -
Ambrisentan
IN STOCKRS-U003189 -
(2S)-2-Amino-2-phenylethanamide
IN STOCKRS-P002175 -
(R)-1-(4-Nitrophenyl)ethan-1-amine Hydrochloride
IN STOCKRS-U080814 -
(R,S)-Ambrisentan acyl-β-D-glucuronide
BACK ORDERRS-A064009 -
(S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid
IN STOCKRS-P002027 -
(S)-4-Hydroxymethyl Ambrisentan
CUSTOM SYNTHESISRS-A064001 -
(±)-Ambrisentan D3 (methoxy D3)
IN STOCKRS-I100054 -
2-[(4,6-Dimethyl-2-pyrimidinyl)oxy]-3,3-diphenyl-2-propenoic Acid
IN STOCKRS-I010179 -
2-Hydroxy-3-methoxy-3,3-diphenylpropanoic Acid-d3 Methyl Ester
CUSTOM SYNTHESISRS-I105003 -
5-(bromomethyl)-2-methylpyrimidin-4-amine
IN STOCKRS-C004045 -
Ambrisentan D3
IN STOCKRS-A064005 -
Ambrisentan Epoxide Impurity
IN STOCKRS-A064020 -
Ambrisentan-d10
IN STOCKRS-A064026 -
Diphenylacetaldehyde (BSC)
IN STOCKRS-U062941 -
ethyl 2-hydroxy-3-methoxy-3,3-diphenylpropanoate
CUSTOM SYNTHESISRS-A064029 -
H-Phg-Ome Hydrochloride
IN STOCKRS-Z412MAI -
rac 4-Hydroxymethyl Ambrisentan
IN STOCKRS-A064010 -
rac Ambrisentan-d3 Methyl Ester
CUSTOM SYNTHESISRS-A064014 -
Rac O-Demethyl Ambrisentan
IN STOCKRS-A064011 -
Ambrisentan Impurity 1(Ambrisentan Racemate)
IN STOCKRS-A064019 -
Ambrisentan Impurity 2
IN STOCKRS-A064002 -
Ambrisentan Impurity 2 (178306-49-5)
IN STOCKRS-A064028 -
Ambrisentan Impurity 7
IN STOCKRS-A064007 -
Ambrisentan Impurity 8
IN STOCKRS-A064012 -
Ambrisentan Impurity 13
BACK ORDERRS-A064006 -
Ambrisentan Impurity 14
CUSTOM SYNTHESISRS-A064008 -
Ambrisentan Impurity 20
IN STOCKRS-A064021 -
Ambrisentan Impurity 21
IN STOCKRS-A064025 -
Ambrisentan Impurity 22
CUSTOM SYNTHESISRS-A064023 -
Ambrisentan Impurity 23
IN STOCKRS-A064018 -
Ambrisentan Impurity 25
CUSTOM SYNTHESISRS-A064024 -
Ambrisentan Impurity 27
IN STOCKRS-A064022 -
Ambrisentan Impurity 28
IN STOCKRS-A064017 -
Ambrisentan Impurity 29
BACK ORDERRS-A064027 -
Ambrisentan Impurity 31
IN STOCKRS-A064031 -
Ambrisentan Impurity 34
IN STOCKRS-A064003 -
Ambrisentan Impurity 38
IN STOCKRS-I011051
Pharmacopoeial names (EP, USP, BP, JP) are used for identification purposes only and do not imply endorsement by those bodies. This product is supplied for laboratory and research use only — not for human or veterinary use.








![Chemical structure of 2-[(4,6-Dimethyl-2-pyrimidinyl)oxy]-3,3-diphenyl-2-propenoic Acid](/structures/w4/RCXXMENQXDEDQY-UHFFFAOYSA-N.webp?v=8)




























