Anodyne

Pentazocine
Pentazocine
Salts
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Pentazocine hydrochloride
Pentazocine hydrochloride
Molecular structure via molpic
Conformer structure via 3Dmol.js
Molecular formulaC19H27NO[1]
Molecular mass285.4 g/mol[1]
AppearanceWHITE TO VERY PALE TAN CRYSTALLINE POWDER[1]
OdorODORLESS OR ALMOST ODORLESS[1]
TasteSLIGHTLY BITTER TASTE[1]
Predicted LogP3.3[1]
Melting point145.4-147.2 °C[1]
DecompositionWhen heated to decomposition it emits toxic fumes of nitroxides.[1]
SolubilityWhite to pale cream colored, odorless crystalline powder; there are two forms melting at about 218 deg & 254 °C, respectively; Sol 1 part in 30 parts of water, 1 part in 16 parts alcohol, 1 part in 4 parts chloroform; very slightly sol in acetone; practically insol in ether; 1% soln in water has a pH of 4 to 6 /Pentazocine hydrochloride/[1]
Chiralityracemic[2]
Identifiers
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IUPAC name(1R,9R,13R)-1,13-dimethyl-10-(3-methylbut-2-enyl)-10-azatricyclo[7.3.1.02,7]trideca-2(7),3,5-trien-4-ol[1]
SMILESC[C@H]1[C@H]2CC3=C([C@@]1(CCN2CC=C(C)C)C)C=C(C=C3)O[1]
InChIInChI=1S/C19H27NO/c1-13(2)7-9-20-10-8-19(4)14(3)18(20)11-15-5-6-16(21)12-17(15)19/h5-7,12,14,18,21H,8-11H2,1-4H3/t14-,18+,19+/m0/s1[1]
InChIKeyVOKSWYLNZZRQPF-GDIGMMSISA-N[1]
Dosing
Elimination half-life2 to 3 hours

Pentazocine

Pentazocine (also known as L-pentazocine, Pentazocin, Pentazocine, (-)-, Levopentazocine, Pentazocinum, Pentazocine, L-, (-)-Pentazocine, 7488-49-5, dl-Pentazocine or cis-(-)-Pentazocine) is a opioid substance of the phenidate class.

Chemistry

Pentazocine is typically found in the form of its hydrochloride salt.

Stereochemistry

(RS)-Pentazocine is a racemic mixture of the optical stereoisomers:

Stereoisomers
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(+)-Pentazocine

(+)-Pentazocine

(-)-Pentazocine

(-)-Pentazocine

(-)-Pentazocine

(-)-Pentazocine

(-)-Pentazocine

(-)-Pentazocine

See also