Levonorgestrel EP Impurity G
- CAS87585-03-3
- CatalogueRS-L001030
- FormulaC21H28O3
- MW328.45
On this page
Product identification
| Product name | Levonorgestrel EP Impurity G |
|---|---|
| Catalogue No. | RS-L001030 |
| CAS No. | 87585-03-3 |
| Molecular formula | C21H28O3 |
| Molecular weight | 328.45 |
| Availability | In stock— dispatched in about 1–2 weeks |
| Standard type | Impurity Reference Standards |
| Drug substance | Levonorgestrel |
| Also known as | Levonorgestrel Impurity 7(Levonorgestrel EP Impurity G); Levonorgestrel-Impurity G |
| 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-L001030 / 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 Levonorgestrel
- Impurity Reference Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-L001030
- Request a quotation for RS-L001030
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 Levonorgestrel
All 56 further standards are listed here — every link is in the page, not loaded later.
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Levonorgestrel EP Impurity B
IN STOCKRS-L001018 -
Levonorgestrel EP Impurity C
CUSTOM SYNTHESISRS-L001006 -
Levonorgestrel EP Impurity I
IN STOCKRS-L001020 -
Levonorgestrel EP Impurity K
IN STOCKRS-L001028 -
Levonorgestrel EP Impurity O
IN STOCKRS-L001011 -
Levonorgestrel EP Impurity P
IN STOCKRS-I001AT1 -
Levonorgestrel EP Impurity Q
IN STOCKRS-L001008 -
Levonorgestrel EP Impurity R
IN STOCKRS-L001014 -
Levonorgestrel EP Impurity S
IN STOCKRS-L001012 -
Levonorgestrel EP Impurity T
CUSTOM SYNTHESISRS-Z399GWV -
Levonorgestrel EP Impurity V
IN STOCKRS-L001007 -
Levonorgestrel EP Impurity W
IN STOCKRS-L001010 -
Levonorgestrel Impurity 9(Levonorgestrel EP Impurity I)
IN STOCKRS-Z412ODX -
Levonorgestrel EP Impurity T Relative
IN STOCKRS-I004266 -
Levonorgestrel EP Impurity A Racemic
IN STOCKRS-L001003 -
(9R,13S)-13-ethyl-3-methoxy-1,4,6,7,9,11,12,13,15,16-decahydro-17H-cyclopenta[a]phenanthren-17-one
CUSTOM SYNTHESISRS-U080488 -
13-Ethyl-18,19-dinorpregn-5-en-20-yne-3β,17β-diol
IN STOCKRS-E899004 -
13-Ethyl-3-methoxygona-1,3,5(10)-8,14-pentaen-17beta-ol-acetate
CUSTOM SYNTHESISRS-Z401H99 -
13-Ethylgon-5(10)en-3,17-dione
IN STOCKRS-I006159 -
3-alfa,5-beta-Tetrahydro Levonorgestrel
IN STOCKRS-U056129 -
3-beta,5-beta-Tetrahydro Levonorgestrel
CUSTOM SYNTHESISRS-U055133 -
3-Ethoxy-13-ethyl-17-ethynylgona-3,5-dien-17β-yl Acetate
IN STOCKRS-E852006 -
5(6)-Dehydro-4(5)-dihydro D-(-)-Norgestrel (>90%)
IN STOCKRS-L001001 -
6(7)-Dehydro Norgestrel
IN STOCKRS-I010306 -
6-Hydroxy Levonorgestrel
IN STOCKRS-L001031 -
6-Methoxytetralin
CUSTOM SYNTHESISRS-U085486 -
6-Oxo D-(-)-Norgestrel
IN STOCKRS-L001004 -
6b-Hydroxylevonorgestrel
IN STOCKRS-U081268 -
Delta-5(10)-8-alfa-Levonorgestrel
IN STOCKRS-L001023 -
Dextronorgestrel
IN STOCKRS-U211NOI -
Ethylmetrienone
IN STOCKRS-L001029 -
Levonorgestrel 3-Ethyldienol Ether
IN STOCKRS-L001032 -
Levonorgestrel Condensation Impurity
IN STOCKRS-L001045 -
Levonorgestrel D6
IN STOCKRS-L001037 -
Levonorgestrel Impurity 3
CUSTOM SYNTHESISRS-L001013 -
Levonorgestrel Impurity 7 (Mixture of Diastereomers)
IN STOCKRS-L001021 -
Levonorgestrel Impurity 15
BACK ORDERRS-Z393SDU -
Levonorgestrel Impurity 31
IN STOCKRS-L001033 -
Levonorgestrel Impurity 32
CUSTOM SYNTHESISRS-L001025 -
Levonorgestrel Impurity 34
CUSTOM SYNTHESISRS-L001040 -
Levonorgestrel Impurity 36
IN STOCKRS-Z412OZ7 -
Levonorgestrel Impurity 39
CUSTOM SYNTHESISRS-L001026 -
Levonorgestrel Impurity 41
IN STOCKRS-L001036 -
Levonorgestrel Impurity 46
CUSTOM SYNTHESISRS-L001034 -
Levonorgestrel EP Impurity A
IN STOCKRS-L001005 -
Levonorgestrel Impurity 48
IN STOCKRS-L001017 -
Levonorgestrel Impurity 49
IN STOCKRS-L001019 -
Levonorgestrel Impurity 50
IN STOCKRS-L001027 -
Levonorgestrel Impurity 51
IN STOCKRS-L001039 -
Levonorgestrel Impurity 52
IN STOCKRS-L001002 -
Levonorgestrel Impurity 53
IN STOCKRS-L001022 -
Levonorgestrel Impurity 55
IN STOCKRS-L001035 -
Levonorgestrel Impurity 69
IN STOCKRS-L001038
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 (8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-4,5,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one](/structures/w4/LOYZAYJMFHXJBT-PHUJNLFTSA-N.webp?v=8)
![Chemical structure of (8R,9S,13S,14S,E)-13-ethyl-3-methoxy-1,4,6,7,8,9,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-one oxime](/structures/w4/OFPYYQCWMZFULF-LJACOXEUSA-N.webp?v=8)

![Chemical structure of (9R,13S)-13-ethyl-3-methoxy-1,4,6,7,9,11,12,13,15,16-decahydro-17H-cyclopenta[a]phenanthren-17-one](/structures/w4/RASBYYYMWSFRHY-UZLBHIALSA-N.webp?v=8)


































