Active ingredient · Levonorgestrel family
Pharmaceutical analytical standardLevonorgestrel
Synonyms: D-Norgestrel, Mirena, Microval, Norplant, Plan B, Levonova, Jadelle, Microlut, Norplant II, NorLevo, Levonelle, Norgeston, Liletta, Fallback Solo, Levosert, Microluton, Skyla, Next choice, Plan B One-Step, Norgestrel, (-)-, Norplant System in Plastic Container, Kyleena, L-Norgestrel, NSC 744007, Postinor-2, Norplant2, Optionelle, Afterpill, Emerres, Ezinelle, Isteranda, Jaydess, Upostelle, Aftera, AfterPlan, Curae, Julie, React, SheWise, Emerres una, Norplant System, After Banger, Athentia Next, Morning After, Stix Restart, Empowered Choice, Take Action, Her Style, Levonelle-2, Opcicon One-step, New Day, EContra One-Step, PostDay One-Step, Levonelle one step, My Choice TM, My Way, Econ Morning After, Next Choice One Dose, Emergency Contraceptive, Fem Choice morning after, Ithappenz morning after, Postinor, Follistrel, Monovar, Norgestrel-(-)-D, Norgestrel (-)-form, Microlution, Ovranette, Triagynon, Triciclor, Microgyn, Nordet, Trigoa, Microgynon CD, Microgest ED, Logynon ED, Levlen ED, Microgynon 21, Microgynon 28, Trinordiol 21, Trinordiol 28, Minivlar 30, Monofeme 28, Neogynon 21, Nordette 21, Nordette 28, Stediril 30, Trifeme 28, Preven, Microgynon 30 ED, Tri-Levlen 21, Rigevidon 21+7, Triquilar ED, Triphasil 21, Triphasil 28, E-Gen-C, Ovoplex 30-150, Levogel, LNG-IUS, NSC 757251, D(minus)-norgestrel
- Cat. No.
- P-L056-001
- CAS
- 797-63-7
- Alternative CAS
- N/A
- Formula
- C21H28O2
- Molecular weight
- 312.45 g/mol
- Category
- Active ingredient (API)
A second-generation progestin, the active laevorotatory form of norgestrel: used since 1970 in contraceptive pills, today also in emergency contraception, hormonal intrauterine devices and implants.
Did you know?Norgestrel was made by total synthesis in the early 1960s through the work of Plymouth-born chemist Herchel Smith and colleagues; of its two mirror-image forms only the laevorotatory one is active, hence the prefix "levo".
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
Shipped under controlled temperature when the molecule requires it.
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Sent with every order.
Follow your shipment live, from our warehouse to your lab.
Pharmacopoeial standards available
The official European Pharmacopoeia standards for this molecule, supplied with EDQM documentation.
- LevonorgestrelBP 501
- Levonorgestrel CRSEP L0551000
- Levonorgestrel for system suitability 1 CRSEP Y0001431
- Levonorgestrel for system suitability 2 CRSEP Y0001618
More products in the Levonorgestrel family
Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.
