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Details

Stereochemistry ABSOLUTE
Molecular Formula C21H28O4
Molecular Weight 344.4446
Optical Activity UNSPECIFIED
Defined Stereocenters 2 / 2
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of 11-NOR-9-CARBOXY-.DELTA.9-TETRAHYDROCANNABINOL

SMILES

CCCCCC1=CC(O)=C2[C@@H]3C=C(CC[C@H]3C(C)(C)OC2=C1)C(O)=O

InChI

InChIKey=YOVRGSHRZRJTLZ-HZPDHXFCSA-N
InChI=1S/C21H28O4/c1-4-5-6-7-13-10-17(22)19-15-12-14(20(23)24)8-9-16(15)21(2,3)25-18(19)11-13/h10-12,15-16,22H,4-9H2,1-3H3,(H,23,24)/t15-,16-/m1/s1

HIDE SMILES / InChI

Molecular Formula C21H28O4
Molecular Weight 344.4446
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 2 / 2
E/Z Centers 0
Optical Activity UNSPECIFIED

11-NOR-9-CARBOXY-DELTA9-TETRAHYDROCANNABINOL (THC-COOH) is the main the non-psychoactive metabolite of Delta9-Tetrahydrocannabinol. Being most abundant in bodily fluids, it has become an established marker of cannabis consumption in forensic, clinical and environmental analyses. Among the cannabinoids tested as potential inhibitors of the drug efflux transporter P-glycoprotein (Pgp), which is responsible for the multidrug-resistance of a tumour and normal cells, THC-COOH behaved as a substrate and was the most active in stimulating Pgp-dependent ATPase. It displayed analgesic and anti-inflammatory properties apparently by inhibiting cyclooxygenase and 5-lipoxygenase activities. THC-COOH was not an anxiolytic or anxiogenic drug but abolished the anxiogenic behavioral effect of Delta9-Tetrahydrocannabinol.

CNS Activity

Curator's Comment: Known to be CNS penetrant in mouse. Human data not available. Only a negligible fraction (0.2%) of injected THC-COOH reached the brain.

Approval Year

Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
1.013 ng/mL
1.25 mg 1 times / day multiple, rectal
dose: 1.25 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
0.953 ng/mL
2.5 mg 1 times / day multiple, rectal
dose: 2.5 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
2.431 ng/mL
5 mg 1 times / day multiple, rectal
dose: 5 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
3.977 ng/mL
10 mg 1 times / day multiple, rectal
dose: 10 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
7.666 ng/mL
20 mg 1 times / day multiple, rectal
dose: 20 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
6.57 ng/mL
10 mg 1 times / day multiple, rectal
dose: 10 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
9.21 ng/mL
10 mg 1 times / day multiple, oral
dose: 10 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
1.23 ng/mL
4.25 mg single, oral
dose: 4.25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FED
2.16 ng/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FED
3.12 ng/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
1.32 ng/mL
2.5 mg single, oral
dose: 2.5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
2.96 ng/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
7.88 ng/mL
10 mg single, oral
dose: 10 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
20.318 ng × h/mL
5 mg 1 times / day multiple, rectal
dose: 5 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
33.621 ng × h/mL
10 mg 1 times / day multiple, rectal
dose: 10 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
79.954 ng × h/mL
20 mg 1 times / day multiple, rectal
dose: 20 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
47.84 ng × h/mL
10 mg 1 times / day multiple, rectal
dose: 10 mg
route of administration: Rectal
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
19.59 ng × h/mL
10 mg 1 times / day multiple, oral
dose: 10 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
13.29 ng × h/mL
4.25 mg single, oral
dose: 4.25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FED
15.59 ng × h/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FED
11.81 ng × h/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
2.88 ng × h/mL
2.5 mg single, oral
dose: 2.5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
6.16 ng × h/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
15.2 ng × h/mL
10 mg single, oral
dose: 10 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
11.23 h
4.25 mg single, oral
dose: 4.25 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FED
11.11 h
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FED
12.47 h
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
64 h
7.5 mg 1 times / day multiple, oral
dose: 7.5 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
52.1 h
14.8 mg 1 times / day multiple, oral
dose: 14.8 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
44.2 h
0.47 mg 1 times / day multiple, oral
dose: 0.47 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
50.3 h
0.39 mg 1 times / day multiple, oral
dose: 0.39 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
25 h
2.5 mg single, oral
dose: 2.5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
36 h
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
36 h
10 mg single, oral
dose: 10 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
Funbound

Funbound

ValueDoseCo-administeredAnalytePopulation
10%
single, unknown
DRONABINOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FED
PubMed

PubMed

TitleDatePubMed
The association of cannabis use on inpatient psychiatric hospital outcomes.
2018
11-nor-9-carboxy-Δ9-tetrahydrocannabinol glucuronide exhibits acyl-migration isomers.
2017-11-30
Improving wastewater-based epidemiology to estimate cannabis use: focus on the initial aspects of the analytical procedure.
2017-10-02
Maternal marijuana use, adverse pregnancy outcomes, and neonatal morbidity.
2017-10
Chlorination Kinetics of 11-Nor-9-carboxy-Δ9-tetrahydrocannabinol: Effects of pH and Humic Acid.
2017-09-19
Concentrations of delta9-tetrahydrocannabinol and 11-nor-9-carboxytetrahydrocannabinol in blood and urine after passive exposure to Cannabis smoke in a coffee shop.
2010-05
Urinary excretion profiles of 11-nor-9-carboxy-delta 9-tetrahydrocannabinol in humans after single smoked doses of marijuana.
1996-10
Marijuana metabolites in urine of man. X. Identification of marijuana use by detection of delta 9-tetrahydrocannabinol-11-oic acid using thin-layer chromatography.
1982-01-01
The tetrahydrocannabinol and tetrahydrocannabinolic acid content of cannabis products.
1981-06
Patents

Sample Use Guides

Single dose of 5 mg THCCOOH.
Route of Administration: Intravenous
11-nor-9-carboxy-delta-9-tetrahydrocannabinol at concentrations 0.08, 0.4, 2, 10, 50 do not significantly increased the intracellular accumulation of the Abcg2/ABCG2 substrate, mitoxantrone (FLH-4) in the MEF3.8/ Bcrp1 A2 cell line in a dose-dependent manner.
Substance Class Chemical
Created
by admin
on Mon Mar 31 18:15:21 GMT 2025
Edited
by admin
on Mon Mar 31 18:15:21 GMT 2025
Record UNII
4TPC9E4A32
Record Status Validated (UNII)
Record Version
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Name Type Language
(-)-11-NOR-9-CARBOXY-.DELTA.9-THC
Preferred Name English
11-NOR-9-CARBOXY-.DELTA.9-TETRAHYDROCANNABINOL
Common Name English
THC-COOH
Common Name English
11-NOR-9-CARBOXY-9.DELTA.-TETRAHYDROCANNABINOL
Common Name English
6H-DIBENZO(B,D)PYRAN-9-CARBOXYLIC ACID, 6A,7,8,10A-TETRAHYDRO-1-HYDROXY-6,6-DIMETHYL-3-PENTYL-, (6AR,10AR)-
Systematic Name English
ACIDE 11-NOR-DELTA-9-THC-CARBOXYLIQUE
Common Name English
11-NOR-.DELTA.9-TETRAHYDROCANNABINOL-9-CARBOXYLIC ACID
Common Name English
11-NOR-9-CARBOXY-DELTA-9-TETRAHYDROCANNABINOL
Common Name English
ACIDE CANNABINOIQUE
Common Name English
11-NOR-DELTA(9)-TETRAHYDROCANNABINOL-9-CARBOXYLIC ACID
Common Name English
Code System Code Type Description
WIKIPEDIA
11-Nor-9-carboxy-THC
Created by admin on Mon Mar 31 18:15:21 GMT 2025 , Edited by admin on Mon Mar 31 18:15:21 GMT 2025
PRIMARY
CAS
56354-06-4
Created by admin on Mon Mar 31 18:15:21 GMT 2025 , Edited by admin on Mon Mar 31 18:15:21 GMT 2025
PRIMARY
SMS_ID
100000126327
Created by admin on Mon Mar 31 18:15:21 GMT 2025 , Edited by admin on Mon Mar 31 18:15:21 GMT 2025
PRIMARY
FDA UNII
4TPC9E4A32
Created by admin on Mon Mar 31 18:15:21 GMT 2025 , Edited by admin on Mon Mar 31 18:15:21 GMT 2025
PRIMARY
PUBCHEM
108207
Created by admin on Mon Mar 31 18:15:21 GMT 2025 , Edited by admin on Mon Mar 31 18:15:21 GMT 2025
PRIMARY
EPA CompTox
DTXSID20204907
Created by admin on Mon Mar 31 18:15:21 GMT 2025 , Edited by admin on Mon Mar 31 18:15:21 GMT 2025
PRIMARY
EVMPD
SUB33435
Created by admin on Mon Mar 31 18:15:21 GMT 2025 , Edited by admin on Mon Mar 31 18:15:21 GMT 2025
PRIMARY
CAS
64280-14-4
Created by admin on Mon Mar 31 18:15:21 GMT 2025 , Edited by admin on Mon Mar 31 18:15:21 GMT 2025
SUPERSEDED
CHEBI
77273
Created by admin on Mon Mar 31 18:15:21 GMT 2025 , Edited by admin on Mon Mar 31 18:15:21 GMT 2025
PRIMARY
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