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Pharmaceutical impurity

1,2-Dehydro-3-oxo Rocuronium Bromide

1,2-Dehydro-3-oxo Rocuronium Bromide is listed in the pharmaceutical impurity collection under CAS 1190105-67-9. Its represented structure has formula C32H49BrN2O4 and a calculated molecular weight of 605.66 g/mol.

2D chemical structure

N + O N O O O B r - H H H H ( S ) ( S ) ( R ) ( S ) ( S ) ( S ) ( S ) ( R )

Chemical identity

Catalog name
1,2-Dehydro-3-oxo Rocuronium Bromide
Common name
1,2-Dehydro-3-oxo Rocuronium Bromide
Chemical name
[(5S,8R,9S,10S,13S,14S,16S,17R)-10,13-dimethyl-2-morpholin-4-yl-3-oxo-16-(1-prop-2-enylpyrrolidin-1-ium-1-yl)-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate;bromide
CAS
1190105-67-9
SMILES
C=CC[N+]1([C@H]2C[C@H]3[C@@H]4CC[C@H]5CC(=O)C(N6CCOCC6)=C[C@]5(C)[C@H]4CC[C@]3(C)[C@H]2OC(C)=O)CCCC1.[Br-]
InChI
InChI=1S/C32H49N2O4.BrH/c1-5-14-34(15-6-7-16-34)28-20-26-24-9-8-23-19-29(36)27(33-12-17-37-18-13-33)21-32(23,4)25(24)10-11-31(26,3)30(28)38-22(2)35;/h5,21,23-26,28,30H,1,6-20H2,2-4H3;1H/q+1;/p-1/t23-,24+,25-,26-,28-,30-,31-,32-;/m0./s1
InChIKey
FDZFJGLEXRXQBW-NWTLINSMSA-M
Associated API
Rocuronium

Record ID: A2ac918ae80d2

Computed properties

C32H49BrN2O4 Molecular formula
605.658 g/molMolecular weight
604.2876 DaMonoisotopic exact mass
55.84 ŲTopological polar surface area
1.7449 Calculated LogP (Wildman–Crippen)
146.9924 cm³/molMolar refractivity (Wildman–Crippen)
5 countHydrogen-bond acceptors
0 countHydrogen-bond donors

Descriptors are calculated from the displayed SMILES. Calculated LogP is not a measured partition coefficient or a pH-specific LogD. The SMILES contains 2 disconnected components. Calculations retain all represented components.

Molecular descriptor profile

Descriptor radar

Mol. weight LogP TPSA HBA HBD Rotatable 25 50 75 100

Structural feature counts

0 3 6 Count H-bond acceptors H-bond donors Rotatable bonds Rings Aromatic rings Stereo centers

Element composition

Br C H N O 0 15 30 45 Number of atoms

Radar scale: 0–100 percentile within 25,771 distinct represented structures in this release, using the midpoint rank for ties. Larger values indicate a higher descriptor rank, not greater safety or toxicity. Element counts include hydrogen and combine isotopes under each element.

Radar values and percentile reference
DescriptorValuePercentile
Molecular weight605.65892.12
Calculated LogP (Wildman–Crippen)1.744937.68
Topological polar surface area55.8436.87
Hydrogen-bond acceptors565.12
Hydrogen-bond donors011.28
Rotatable bonds (strict)560.59

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC32H49BrN2O4dimensionless
Molecular weight605.658g/mol
Monoisotopic exact mass604.2876Da
Topological polar surface area55.84Ų
Calculated LogP (Wildman–Crippen)1.7449dimensionless
Molar refractivity (Wildman–Crippen)146.9924cm³/mol
Hydrogen-bond acceptors5count
Hydrogen-bond donors0count
Rotatable bonds (strict)5count
Heavy atoms39count
Heteroatoms7count
Rings6count
Aromatic rings0count
Aliphatic rings6count
Saturated rings5count
Aromatic heterocycles0count
Aliphatic heterocycles2count
Saturated heterocycles2count
Aromatic carbocycles0count
Aliphatic carbocycles4count
Fraction of sp³ carbon atoms0.8125fraction
Formal charge0e
Disconnected components2count
Isotopically specified atoms0count
Potential atom stereocenters8count
Unspecified atom stereocenters0count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area245.4307Ų
Valence electrons218count
Radical electrons0count
Bertz complexity1,002.128index
Balaban J0index

Ring categories overlap and should not be summed. No toxicity result, PDE, HBEL or acceptable intake is inferred from these descriptors.

Toxicological services and resources for 1,2-Dehydro-3-oxo Rocuronium Bromide

Qualification and safety assessment of 1,2-Dehydro-3-oxo Rocuronium Bromide

Explore toxicological qualification of 1,2-Dehydro-3-oxo Rocuronium Bromide and ICH M7 mutagenic impurity assessment of 1,2-Dehydro-3-oxo Rocuronium Bromide for evaluation of this impurity in its pharmaceutical context.

Where data gaps need to be addressed, resources include read-across assessment for 1,2-Dehydro-3-oxo Rocuronium Bromide and acceptable intake and limit justification for 1,2-Dehydro-3-oxo Rocuronium Bromide. The relevant approach depends on the available evidence, exposure and duration of use.

Related Altox services and technical resources

Other catalogue designations with the same represented structure

These are separate catalogue entries; shared structure does not establish interchangeable pharmacopoeial designations.

Identity sources and calculation method

Identifiers originate from the source catalogues and available public identity records. InChI and InChIKey on this page are generated from the displayed SMILES. RDKit validation checks the molecular representation; it does not independently verify every catalogue assignment.

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