(3R,4S,5S,6R,7R,9R,11S,12R,13S,14R,E)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-6-methyl-3-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-12,13-dihydroxy-10-(hydroxyimino)-7
- CAS1570268-41-5
- CatalogueRS-Z401C7F
- FormulaC33H58N2O4S2
- MW610.38
On this page
Product identification
| Product name | (3R,4S,5S,6R,7R,9R,11S,12R,13S,14R,E)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-6-methyl-3-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-12,13-dihydroxy-10-(hydroxyimino)-7 |
|---|---|
| Catalogue No. | RS-Z401C7F |
| CAS No. | 1570268-41-5 |
| Alternate CAS No. | 1001352-41-5 (free base) |
| Molecular formula | C33H58N2O4S2 |
| Molecular weight | 610.38 |
| Availability | Back order— restocking can be arranged, about 1–2 weeks |
| Standard type | General Reference Standards |
| Drug substance | Erythromycin |
| Also known as | Pharmaffiliates |
| 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-Z401C7F / 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 Erythromycin
- General Reference Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-Z401C7F
- Request a quotation for RS-Z401C7F
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 Erythromycin
All 44 further standards are listed here — every link is in the page, not loaded later.
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Erythromycin Sulfate
BACK ORDERRS-E026033 -
Erythromycin EP Impurity A
BACK ORDERRS-E026026 -
Erythromycin EP Impurity C
BACK ORDERRS-E080001 -
Erythromycin EP Impurity D
IN STOCKRS-E026007 -
Erythromycin EP Impurity E
IN STOCKRS-E026010 -
Erythromycin EP Impurity E N-Oxide
BACK ORDERRS-E026031 -
Erythromycin EP Impurity F
IN STOCKRS-E026001 -
Erythromycin EP Impurity I
IN STOCKRS-E026012 -
Erythromycin EP Impurity J (1S-Isomer)
IN STOCKRS-E026002 -
Erythromycin EP Impurity K
BACK ORDERRS-E026011 -
Erythromycin EP Impurity M
CUSTOM SYNTHESISRS-E026013 -
Erythromycin EP Impurity N
BACK ORDERRS-E077001 -
Erythromycin Ethylsuccinate Impurity P
BACK ORDERRS-E026032 -
Roxithromycin Impurity A
BACK ORDERRS-Z401JLX -
(10E)-3-O-De(a-L-cladinose)-10-dehydro-11-dehydroxy-6-O-methyl-erythromycin
BACK ORDERRS-Z401EHR -
13-Deethyl-13-methylerythromycin
CUSTOM SYNTHESISRS-E026006 -
13-Desethyl, 13-propyl-Erythromycin A
BACK ORDERRS-E026008 -
2,4-O-dis(Trimethyldilyl)-erythromycin A 9-[O-(1-ethoxy-methylethyl)]oxime
BACK ORDERRS-E026003 -
2′-O-Acetylerythromycin A
BACK ORDERRS-E026037 -
3'-N,N-Didemethyl-6-O-methylerythromycin
BACK ORDERRS-E026016 -
3-Fluoropropanal
IN STOCKRS-Z401KTZ -
6-O-Methyl-2,4-bis-O-(trimethylsilyl)erythromycin9-[O-(1-ethoxy-1-methylethyl)oxime]
BACK ORDERRS-E026018 -
Erythromycin 2''-carbonic acid ethyl ester
CUSTOM SYNTHESISRS-E026036 -
Erythromycin E N-oxide
BACK ORDERRS-E026034 -
Erythromycin E N-oxide
BACK ORDERRS-Z401L49 -
Erythromycin Estolate
IN STOCKRS-Z407P25 -
Erythromycin Ethyl Fumarate
IN STOCKRS-E026020 -
Erythromycin Gluceptate (1246000)
BACK ORDERRS-E026030 -
Erythromycin Lactobionate
BACK ORDERRS-Z401IGP -
Erythromycin, 4′′-O-methyl
CUSTOM SYNTHESISRS-E026024 -
Silylated Erythromycin Oxime Ketal
BACK ORDERRS-E026017 -
Erythromycin Impurity 12
BACK ORDERRS-I001619 -
Erythromycin Impurity 14
BACK ORDERRS-E026009 -
Erythromycin Impurity 17
BACK ORDERRS-E026025 -
Erythromycin Impurity 20
IN STOCKRS-E026005 -
Erythromycin Impurity 24 Monomer(Erythromycin Estolate Monomer
IN STOCKRS-E026021 -
Erythromycin Impurity 46
BACK ORDERRS-E026029 -
Erythromycin Impurity 52
BACK ORDERRS-U096757 -
Erythromycin Impurity 111
CUSTOM SYNTHESISRS-E026027 -
Erythromycin Impurity 112
BACK ORDERRS-E026035 -
Erythromycin Impurity 113
IN STOCKRS-E026038
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-O-dis(Trimethyldilyl)-erythromycin A 9-[O-(1-ethoxy-methylethyl)]oxime](/structures/w4/CUJNDMRUUFHMGS-CQUZVWJVSA-N.webp?v=7)



![Chemical structure of 6-O-Methyl-2,4-bis-O-(trimethylsilyl)erythromycin9-[O-(1-ethoxy-1-methylethyl)oxime]](/structures/w4/SGGANCFJEHZNCI-QPRSYORTSA-N.webp?v=7)
















