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Details

Stereochemistry EPIMERIC
Molecular Formula C17H24NO3.NO3
Molecular Weight 352.3823
Optical Activity UNSPECIFIED
Defined Stereocenters 3 / 5
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of METHYLHOMATROPINE NITRATE

SMILES

[O-][N+]([O-])=O.C[N+]1(C)[C@H]2CC[C@@H]1C[C@@H](C2)OC(=O)C(O)C3=CC=CC=C3

InChI

InChIKey=DRTHYWDOFIVHKK-RIMUKSHESA-N
InChI=1S/C17H24NO3.NO3/c1-18(2)13-8-9-14(18)11-15(10-13)21-17(20)16(19)12-6-4-3-5-7-12;2-1(3)4/h3-7,13-16,19H,8-11H2,1-2H3;/q+1;-1/t13-,14+,15+,16?;

HIDE SMILES / InChI

Molecular Formula NO3
Molecular Weight 62.0049
Charge -1
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C17H24NO3
Molecular Weight 290.3774
Charge 1
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry MIXED
Additional Stereochemistry No
Defined Stereocenters 3 / 5
E/Z Centers 0
Optical Activity UNSPECIFIED

Description

Homatropine methylbromide or Methylhomatropine bromide is a quaternary ammonium salt of methylhomatropine. It is a peripherally acting anticholinergic medication that inhibits muscarinic acetylcholine receptors and thus the parasympathetic nervous system. Certain preparations of drugs such as hydrocodone are mixed with a small, sub-therapeutic amount of homatropine methylbromide to discourage intentional overdose.

CNS Activity

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
350.0 nM [Ki]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
PARATROPINA

Sourcing

PubMed

Patents

Sample Use Guides

In Vivo Use Guide
Oral administration: 40 drops of paratropin should be dissolved in a glass of water and administered orally.
Route of Administration: Oral
In Vitro Use Guide
The brains from SD rats were removed following decapitation, dissected free of membranes, and the cerebella discarded. Tissues were then homogenized with a Brinkmann Polytron in 20 vol of ice cold Tris-HCl buffer (50 mM, pH 7.7). The homogenates were centrifuged at 40000 × g for 10 min at 4°C and the pellets resuspended in the buffer at a concentration of 50 mg wet weight/ml. Radioligand displacement binding studies were performed using 0.06 nM of [3H]QNB and 0.2-0.4 mg protein. The Kd value for [3H]QNB was previously determined in our laboratory to be 0.1 nM. Analysis of the results was performed as described above. Methylhomatropine displaces radioligand with Ki of 350 nM.
Substance Class Chemical
Record UNII
6CG939TH70
Record Status Validated (UNII)
Record Version