Substance Information

NB: Registration status and tonnage

  • The REACH Registered substance portal was updated on 9th November 2020; the REACH registered factsheets were further updated on 21st December 2020. Details of the improvements can be found at Dissemination Platform Updates. Reprocessing the entire dataset is ongoing since 21 December 2020. ECHA is making all possible efforts to synchronise the registration status and tonnage with the shortest delay.
  • While reprocessing is ongoing please note that substances whose registration dossiers are not yet processed can incorrectly state in the Infocard that they are not registered under REACH. In these cases if there is a link to a REACH registered substance factsheet then the substance IS registered. The correct total tonnage band can be found in the factsheet(s) for the substance.

Substance Infocard

IC

Paramethasone

EC / List no.: 200-169-2

CAS no.: 53-33-8

Mol. Formula: C22H29FO5

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Key datasets

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Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

REACH - Registration, Evaluation, Authorisation and Restriction of Chemicals Regulation
Previous Legislations
  • Substances listed in the EINECS, ELINCS, or NLP inventories.
Cosmetic Products Regulation
  • Cosmetic Products Regulation, Annex II - Prohibited Substances
    EU. Prohibited Substances: Annex II, Regulation 1223/2009/EC on Cosmetic Products, as amended by Regulation (EU) 2020/1683, 13 November 2020

    This list contains substances which are banned from use in any cosmetic products marketed for sale or use in the European Union.

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Substance names and other identifiers

Regulatory process names
16alpha-Methyl-6alpha-fluoroprednisolone
Other
6alpha-Fluoro-16alpha-methylprednisolone
Other
Alondra
Other
Cassenne
Other
Cortiden
Other
CS 1483
Other
Dillar
Other
Flumethone
Other
Metilar
Other
Parametasona
Other
Parametasone
Other
Paramethasone
EC Inventory, Other
Paramethasone
Cosmetic Products Regulation, Annex II - Prohibited Substances, Other
paramethasone
Pre-Registration process, Other
Paramethasonum
Other
Paramezone
Other
Pregna-1,4-diene-3,20-dione, 6-fluoro-11,17,21-trihydroxy-16-methyl-, (6alpha,11beta,16alpha)-
Other
Pregna-1,4-diene-3,20-dione, 6alpha-fluoro-11beta,17,21-trihydroxy-16alpha-methyl-
Other
IUPAC names
(1R,2R,3aS,3bS,5S,9aR,9bS,10S,11aS)-5-fluoro-1,10-dihydroxy-1-(2-hydroxyacetyl)-2,9a,11a-trimethyl-1H,2H,3H,3aH,3bH,4H,5H,7H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one
Other
(6S,8S,9S,10R,11S,13S,14S,16R,17R)-6-fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one
Other
Other identifiers
53-33-8
EC Inventory, Pre-Registration process, Cosmetic Products Regulation, Annex II - Prohibited Substances, Other
CAS number

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