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Impurities and reference standards

6beta-Hydroxylevonorgestrel

Also known as Levonorgestrel impurity H, (6beta,17alpha)-13-Ethyl-6,17-dihydroxy-18,19-dinorpregn-4-en-20-yn-3-one, 13-Ethyl-6beta,17-dihydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one

CAS 55555-97-0Formula C21H28O3Molar mass 328.45 g/molEC 641-777-1
GHS signal word: Danger. Pictograms: Serious health hazard
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6beta-Hydroxylevonorgestrel chemical structure, C21H28O3, CAS 55555-97-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
55555-97-0
Formula
C21H28O3
Molar mass
328.45 g/mol
EC number
641-777-1
HS code
291440
Category
Impurities and reference standards

What is 6beta-Hydroxylevonorgestrel?

Plain description, key identifiers and synonyms

6beta-Hydroxylevonorgestrel is a chemical substance with the molecular formula C21H28O3 and a molar mass of 328.45 g/mol. Its CAS registry number is 55555-97-0. The IUPAC name is (6R,8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-6,17-dihydroxy-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(6R,8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-6,17-dihydroxy-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one
CAS number
55555-97-0Other or deprecated CAS: 20402-61-3
EC number
641-777-1
Molecular formula
C21H28O3
UNII
579EVS2GNR, Y643AOR6HN
MDL number
MFCD19053183
InChIKey
LUDPEOWAWHAHEP-JUYLZWBTSA-N
InChI
InChI=1S/C21H28O3/c1-3-20-9-7-15-14-6-5-13(22)11-17(14)19(23)12-16(15)18(20)8-10-21(20,24)4-2/h2,11,14-16,18-19,23-24H,3,5-10,12H2,1H3/t14-,15-,16-,18+,19-,20+,21+/m1/s1
Canonical SMILES
C#CC1(O)CCC2C3CC(O)C4=CC(=O)CCC4C3CCC21CC
Isomeric SMILES
CC[C@]12CC[C@@H]3[C@H]4CCC(=O)C=C4[C@@H](C[C@H]3[C@@H]1CC[C@]2(C#C)O)O

Synonyms

  • Levonorgestrel impurity H
  • (6beta,17alpha)-13-Ethyl-6,17-dihydroxy-18,19-dinorpregn-4-en-20-yn-3-one
  • 13-Ethyl-6beta,17-dihydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one
  • (6beta,17.alpha.)-13-ethyl-6,17-dihydroxy-18,19-dinorpregn-4-en-20-yn-3-one
  • 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-6,17-dihydroxy-, (6beta,17alpha)-
  • 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-6,17-dihydroxy-, (6beta,17.alpha.)-
  • Levonorgestrel impurity h (ep impurity)
  • Levonorgestrel EP Impurity H
  • 6b-Hydroxylevonorgestrel
  • rac 6b-Hydroxy Norgestrel
  • (6R,8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-6,17-dihydroxy-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one
  • rac 6beta-Hydroxy Norgestrel
  • (6R,8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-6,17-dihydroxy-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one
  • 6|A-Hydroxy Norgestrel
  • 6beta-Hydroxy Norgestrel
  • (6beta,17alpha)-(+/-)-13-Ethyl-6,17-dihydroxy-18,19-dinorpregn-4-en-20-yn-3-one, (+/-)-13-Ethyl-6beta,17-dihydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one
  • 13-Ethyl-6beta,17-dihydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one (6beta-Hydroxylevonorgestrel)
  • 6|A-Hydroxylevonorgestrel
  • Levonorgestrel Impurity H (6-beta-Hydroxy Levonorgestrel)
  • Norgestrel impurity C
  • 18,19-Dinor-17alpha-pregn-4-en-20-yn-3-one, 13-ethyl-6beta,17-dihydroxy-, (+/-)-
  • 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-6,17-dihydroxy-, (6beta,17alpha)-(+/-)-
  • rac-13-Ethyl-6beta,17-dihydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
328.45 g/molcalc.
Exact mass
328.2038 Dacalc.
LogP (octanol/water)
2.85calc.
Topological polar surface area
57.53 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
24calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.76calc.
Formal charge
0calc.
Stereocentres
7calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1C=C2CCC3C4CCCC4CCC3C2CC1

O=C1C=C2CCC3C4CCCC4CCC3C2CC1

4 rings, 18 atoms.

1,419 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H360May damage fertility or the unborn child.
Precautionary statements (5)
  • P203Obtain, read and follow all safety instructions before use.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

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6beta-Hydroxylevonorgestrel price

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 6beta-Hydroxylevonorgestrel is traded under.

HS 2914.40Indicative HS code

Ketone-alcohols and ketone-aldehydes

World exports in 2024
$199M
+2.5% vs 2023, imports $247M
2019 to 2024
Top exporters
  1. China29.5%
  2. Germany14.4%
  3. Netherlands12.7%
Top importers
  1. United States37.2%
  2. Netherlands8.5%
  3. Germany6.4%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 6beta-Hydroxylevonorgestrel is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 6beta-Hydroxylevonorgestrel, based on the data on this page

What is 6beta-Hydroxylevonorgestrel?

6beta-Hydroxylevonorgestrel is a chemical substance with the molecular formula C21H28O3 and a molar mass of 328.45 g/mol. Its CAS registry number is 55555-97-0. The IUPAC name is (6R,8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-6,17-dihydroxy-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one.

What is the CAS number of 6beta-Hydroxylevonorgestrel?

The CAS registry number of 6beta-Hydroxylevonorgestrel is 55555-97-0. Other or deprecated CAS numbers: 20402-61-3.

What is the molecular formula and weight of 6beta-Hydroxylevonorgestrel?

The molecular formula of 6beta-Hydroxylevonorgestrel is C21H28O3 and its molar mass is 328.45 g/mol.

Is 6beta-Hydroxylevonorgestrel hazardous?

6beta-Hydroxylevonorgestrel carries the GHS signal word "Danger". Main hazards: may damage fertility or the unborn child. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 6beta-Hydroxylevonorgestrel?

6beta-Hydroxylevonorgestrel is usually classified under HS code 291440 (Ketone-alcohols and ketone-aldehydes). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 6beta-Hydroxylevonorgestrel?

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What is the price of 6beta-Hydroxylevonorgestrel?

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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