ChemAbout
© 2026 ChemAbout
Insights|Privacy Policy|Terms of Service|[email protected]
Home/Compounds/API/(17R)-norethindrone acetate
C22H28O3
340.5 g/mol
APIDanger

Norethindrone acetate

CAS51-98-9EC200-132-0
Category
API
Compound Class
Steroid
Primary Use
Pharmaceutical Raw Material

Norethindrone acetate is a synthetic steroidal compound used as an active pharmaceutical ingredient. Its structure features a tetracyclic core with ester and ether functional groups, and it is characterized by a molecular weight of approximately 340.

Pharmaceutical raw material for contraceptive formulationsCompound used in hormone therapy manufacturing

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

Sourcing or supplying this compound?

List your inventory or post a purchase request

CAS 51-98-9

List This Product
Sign in to publish supply information
Request This Product
Submit a request without registering

Related Compounds

SimilarStructure SimilarSimilarity 0.74

Norethindrone enanthate

CAS3836-23-5

pharmaceutical raw material

ReferenceSame Category

Narwedine

CAS510-77-0

pharmaceutical raw material

ReferenceSame Category

Tiapride

CAS51012-32-9

pharmaceutical raw material

ReferenceSame Category

Tiapride hydrochloride

CAS51012-33-0

pharmaceutical raw material

ReferenceSame Category

Albuterol sulfate

CAS51022-70-9

pharmaceutical raw material

Referencesame scaffold

Norethisterone

CAS68-22-4

pharmaceutical raw material

Referencesame scaffold

Norgestrel

CAS6533-00-2

pharmaceutical raw material

Referencesame scaffold

Levonorgestrel

CAS797-63-7

pharmaceutical raw material

Safety Reference

Harmful
Harmful
Health Hazard
Health Hazard
Environmental Hazard
Environmental Hazard
Danger
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H350May cause cancer
H351Suspected of causing cancer
H360May damage fertility or the unborn child
H362May cause harm to breast-fed children
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
Identifiers
IUPAC Name

[(8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3-oxo-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate

InChIKey

IMONTRJLAWHYGT-ZCPXKWAGSA-N

SMILES

CC(=O)O[C@]1(CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=CC(=O)CC[C@H]34)C)C#C

Synonyms (65)
  • ENTA
  • Norethindrone acetate (USP)
  • Norethindrone acetate, United States Pharmacopeia (USP)
  • Norethisterone acetate for system suitability, European Pharmacopoeia (EP)
  • Norethisterone acetate, European Pharmacopoeia (EP)
  • 19-Norethindrone acetate
  • 19-Norethisterone acetate
  • Aygestin
  • Aygestin (TN)
  • Gallifrey
  • Gestakadin
  • Milli-Anovlar
  • Milligynon
  • Miniphase
  • Monogest
  • Norethidrone Acetate
  • Norethindrone 17-acetate
  • Norethindrone acetate
  • Norethisteron acetate
  • Norethisterone 17-acetate
  • Norethisterone acetate
  • Norethisterone acetate (JAN)
  • Norethisterone acetate CRS
  • Norethisterone acetate RS
  • Norethisteroni acetas
  • Norethynyltestosterone
  • Norethysterone acetate
  • Norlutate
  • Norlutin A
  • Norlutin acetate
  • Norlutine acetate
  • Orlutate
  • Ortho Micronor
  • Primolut-Nor
  • Progylut