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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
9-fluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione

Inventory

EC number:
206-825-4
EC name:
Betamethasone
CAS number:
378-44-9
CAS number:
378-44-9
Synonyms
Names:
16β-methyl-9α-fluoro-Δ1-hydrocortisone; 9α-fluoro-16β-methylprednisolone
NSC-39470
Pregna-1,4-diene-3,20-dione, 9-fluoro-11,17,21-trihydroxy-16-methyl-, (11ß,16ß)-
Sch 4831
Identifier:
IUPAC name
9-fluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione
Identifier:
IUPAC name
Betamethasone
Identifier:
other: SMILES notation
C[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)CO
9-fluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione 9α-fluoro-11β,17α,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione

Molecular and structural information

Molecular formula:
C22H29FO5
Molecular weight:
392.461
SMILES notation:
C[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)CO
O=C1C=CC3(C(=C1)CCC2C4CC(C)C(O)(C(=O)CO)C4(C)(CC(O)C23(F)))(C)
C1C(=O)C=C2C(C)(C=1)C3(F)C(CC2)C4C(C)(CC3O)C(O)(C(=O)CO)C(C)C4
InChl:
InChI=1/C22H29FO5/c1-12-8-16-15-5-4-13-9-14(25)6-7-19(13,2)21(15,23)17(26)10-20(16,3)22(12,28)18(27)11-24/h6-7,9,12,15-17,24,26,28H,4-5,8,10-11H2,1-3H3
Structural formula:
Chemical structure

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