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Tetrahydroisoquinolines

Organic heterocyclic compounds that consist of an isoquinoline ring with no double bonds; contains a benzene ring fused to a six-membered ring with one nitrogen atom and five carbon atoms.
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Keyword Search:
1 – 15 of 21 results
1

L-Tetrahydropalmatine 98.0+%, TCI America™
SDP

CAS: 483-14-7 Molecular Formula: C21H25NO4 Molecular Weight (g/mol): 355.43 MDL Number: MFCD03265591 InChI Key: AEQDJSLRWYMAQI-KRWDZBQOSA-N Synonym: tetrahydropalmatine,l-tetrahydropalmatine,rotundine,--tetrahydropalmatine,s-tetrahydropalmatine,caseanine,gindarine,hyndarine,--corydalis,unii-3x69co5i79 PubChem CID: 72301 ChEBI: CHEBI:16563 IUPAC Name: (12bS)-3,4,10,11-tetramethoxy-7,8,12b,13-tetrahydro-5H-6-azatetraphene SMILES: COC1=CC2=C(C=C1OC)[C@@H]1CC3=C(CN1CC2)C(OC)=C(OC)C=C3

PubChem CID 72301
CAS 483-14-7
Molecular Weight (g/mol) 355.43
ChEBI CHEBI:16563
MDL Number MFCD03265591
SMILES COC1=CC2=C(C=C1OC)[C@@H]1CC3=C(CN1CC2)C(OC)=C(OC)C=C3
Synonym tetrahydropalmatine,l-tetrahydropalmatine,rotundine,--tetrahydropalmatine,s-tetrahydropalmatine,caseanine,gindarine,hyndarine,--corydalis,unii-3x69co5i79
IUPAC Name (12bS)-3,4,10,11-tetramethoxy-7,8,12b,13-tetrahydro-5H-6-azatetraphene
InChI Key AEQDJSLRWYMAQI-KRWDZBQOSA-N
Molecular Formula C21H25NO4
2

Tetrandrine 98.0+%, TCI America™
SDP

CAS: 518-34-3 Molecular Formula: C38H42N2O6 Molecular Weight (g/mol): 622.762 MDL Number: MFCD08689909 InChI Key: WVTKBKWTSCPRNU-KYJUHHDHSA-N Synonym: (1beta)-6,6′C,7,12-Tetramethoxy-2,2′C-dimethylberbaman PubChem CID: 73078 ChEBI: CHEBI:49 SMILES: CN1CCC2=CC(=C3C=C2C1CC4=CC=C(C=C4)OC5=C(C=CC(=C5)CC6C7=C(O3)C(=C(C=C7CCN6C)OC)OC)OC)OC

PubChem CID 73078
CAS 518-34-3
Molecular Weight (g/mol) 622.762
ChEBI CHEBI:49
MDL Number MFCD08689909
SMILES CN1CCC2=CC(=C3C=C2C1CC4=CC=C(C=C4)OC5=C(C=CC(=C5)CC6C7=C(O3)C(=C(C=C7CCN6C)OC)OC)OC)OC
Synonym (1beta)-6,6′C,7,12-Tetramethoxy-2,2′C-dimethylberbaman
InChI Key WVTKBKWTSCPRNU-KYJUHHDHSA-N
Molecular Formula C38H42N2O6
3

(S)-(-)-6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid Hydrochloride 98.0+%, TCI America™
SDP

CAS: 82586-62-7 Molecular Formula: C12H16ClNO4 Molecular Weight (g/mol): 273.713 MDL Number: MFCD01861226 InChI Key: ROWPWZMWICGKBY-FVGYRXGTSA-N PubChem CID: 2734261 IUPAC Name: (3S)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid;hydrochloride SMILES: COC1=C(C=C2CNC(CC2=C1)C(=O)O)OC.Cl

PubChem CID 2734261
CAS 82586-62-7
Molecular Weight (g/mol) 273.713
MDL Number MFCD01861226
SMILES COC1=C(C=C2CNC(CC2=C1)C(=O)O)OC.Cl
IUPAC Name (3S)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid;hydrochloride
InChI Key ROWPWZMWICGKBY-FVGYRXGTSA-N
Molecular Formula C12H16ClNO4
4

(S)-2-(tert-Butoxycarbonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid 98.0+%, TCI America™
SDP

CAS: 78879-20-6 Molecular Formula: C15H18NO4 Molecular Weight (g/mol): 276.31 MDL Number: MFCD00143845 InChI Key: HFPVZPNLMJDJFB-LBPRGKRZSA-M Synonym: boc-tic-oh,s-2-tert-butoxycarbonyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,s-n-boc-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,boc-l-tic-oh,s-2-boc-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,3s-2-tert-butoxycarbonyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,n-boc-l-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,3s-2-tert-butoxycarbonyl-3,4-dihydro-1h-isoquinoline-3-carboxylic acid,3s-2-2-methylpropan-2-yl oxycarbonyl-3,4-dihydro-1h-isoquinoline-3-carboxylic acid PubChem CID: 664088 IUPAC Name: (3S)-2-[(tert-butoxy)carbonyl]-1,2,3,4-tetrahydroisoquinoline-3-carboxylate SMILES: CC(C)(C)OC(=O)N1CC2=CC=CC=C2C[C@H]1C([O-])=O

PubChem CID 664088
CAS 78879-20-6
Molecular Weight (g/mol) 276.31
MDL Number MFCD00143845
SMILES CC(C)(C)OC(=O)N1CC2=CC=CC=C2C[C@H]1C([O-])=O
Synonym boc-tic-oh,s-2-tert-butoxycarbonyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,s-n-boc-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,boc-l-tic-oh,s-2-boc-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,3s-2-tert-butoxycarbonyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,n-boc-l-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid,3s-2-tert-butoxycarbonyl-3,4-dihydro-1h-isoquinoline-3-carboxylic acid,3s-2-2-methylpropan-2-yl oxycarbonyl-3,4-dihydro-1h-isoquinoline-3-carboxylic acid
IUPAC Name (3S)-2-[(tert-butoxy)carbonyl]-1,2,3,4-tetrahydroisoquinoline-3-carboxylate
InChI Key HFPVZPNLMJDJFB-LBPRGKRZSA-M
Molecular Formula C15H18NO4
5

Praziquantel 98.0+%, TCI America™
SDP

CAS: 55268-74-1 Molecular Formula: C19H24N2O2 Molecular Weight (g/mol): 312.413 MDL Number: MFCD00058531 InChI Key: FSVJFNAIGNNGKK-UHFFFAOYSA-N Synonym: praziquantel,droncit,biltricide,pyquiton,cesol,azinox,embay 8440,cutter tape tabs,prasiquantel,praziquantelum PubChem CID: 4891 IUPAC Name: 2-(cyclohexanecarbonyl)-3,6,7,11b-tetrahydro-1H-pyrazino[2,1-a]isoquinolin-4-one SMILES: C1CCC(CC1)C(=O)N2CC3C4=CC=CC=C4CCN3C(=O)C2

PubChem CID 4891
CAS 55268-74-1
Molecular Weight (g/mol) 312.413
MDL Number MFCD00058531
SMILES C1CCC(CC1)C(=O)N2CC3C4=CC=CC=C4CCN3C(=O)C2
Synonym praziquantel,droncit,biltricide,pyquiton,cesol,azinox,embay 8440,cutter tape tabs,prasiquantel,praziquantelum
IUPAC Name 2-(cyclohexanecarbonyl)-3,6,7,11b-tetrahydro-1H-pyrazino[2,1-a]isoquinolin-4-one
InChI Key FSVJFNAIGNNGKK-UHFFFAOYSA-N
Molecular Formula C19H24N2O2
6

(+)-Bicuculline 98.0+%, TCI America™
SDP

CAS: 485-49-4 Molecular Formula: C20H17NO6 Molecular Weight (g/mol): 367.357 MDL Number: MFCD00005006 InChI Key: IYGYMKDQCDOMRE-ZWKOTPCHSA-N Synonym: +-bicuculline,bicuculline,d-bicuculline,bicculine,bicucullin,bicuculline +,unii-y37615dvkc,6r-6-5s-6-methyl-5,6,7,8-tetrahydro 1,3 dioxolo 4,5-g isoquinolin-5-yl furo 3,4-e 1,3 benzodioxol-8 6h-one,furo 3,4-e-1,3-benzodioxol-8 6h-one, 6-5,6,7,8-tetrahydro-6-methyl-1,3-dioxolo 4,5-g isoquinolin-5-yl-, r-r*,s*,6r-6-5s-6-methyl 5,6,7,8-tetrahydro-2h-1,3-dioxolano 4,5-g isoquinolin-5-yl-6-hydro-2h-1,3-dioxoleno 4,5-e isobenzofuran-8-one PubChem CID: 10237 ChEBI: CHEBI:3092 IUPAC Name: (6R)-6-[(5S)-6-methyl-7,8-dihydro-5H-[1,3]dioxolo[4,5-g]isoquinolin-5-yl]-6H-furo[3,4-g][1,3]benzodioxol-8-one SMILES: CN1CCC2=CC3=C(C=C2C1C4C5=C(C6=C(C=C5)OCO6)C(=O)O4)OCO3

PubChem CID 10237
CAS 485-49-4
Molecular Weight (g/mol) 367.357
ChEBI CHEBI:3092
MDL Number MFCD00005006
SMILES CN1CCC2=CC3=C(C=C2C1C4C5=C(C6=C(C=C5)OCO6)C(=O)O4)OCO3
Synonym +-bicuculline,bicuculline,d-bicuculline,bicculine,bicucullin,bicuculline +,unii-y37615dvkc,6r-6-5s-6-methyl-5,6,7,8-tetrahydro 1,3 dioxolo 4,5-g isoquinolin-5-yl furo 3,4-e 1,3 benzodioxol-8 6h-one,furo 3,4-e-1,3-benzodioxol-8 6h-one, 6-5,6,7,8-tetrahydro-6-methyl-1,3-dioxolo 4,5-g isoquinolin-5-yl-, r-r*,s*,6r-6-5s-6-methyl 5,6,7,8-tetrahydro-2h-1,3-dioxolano 4,5-g isoquinolin-5-yl-6-hydro-2h-1,3-dioxoleno 4,5-e isobenzofuran-8-one
IUPAC Name (6R)-6-[(5S)-6-methyl-7,8-dihydro-5H-[1,3]dioxolo[4,5-g]isoquinolin-5-yl]-6H-furo[3,4-g][1,3]benzodioxol-8-one
InChI Key IYGYMKDQCDOMRE-ZWKOTPCHSA-N
Molecular Formula C20H17NO6
7

Tetrabenazine 99.0+%, TCI America™
SDP

CAS: 58-46-8 Molecular Formula: C19H27NO3 Molecular Weight (g/mol): 317.429 InChI Key: MKJIEFSOBYUXJB-UHFFFAOYSA-N Synonym: 3-Isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-benzo[a]quinolizin-2-one PubChem CID: 6018 ChEBI: CHEBI:64028 IUPAC Name: 9,10-dimethoxy-3-(2-methylpropyl)-1,3,4,6,7,11b-hexahydrobenzo[a]quinolizin-2-one SMILES: CC(C)CC1CN2CCC3=CC(=C(C=C3C2CC1=O)OC)OC

PubChem CID 6018
CAS 58-46-8
Molecular Weight (g/mol) 317.429
ChEBI CHEBI:64028
SMILES CC(C)CC1CN2CCC3=CC(=C(C=C3C2CC1=O)OC)OC
Synonym 3-Isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-benzo[a]quinolizin-2-one
IUPAC Name 9,10-dimethoxy-3-(2-methylpropyl)-1,3,4,6,7,11b-hexahydrobenzo[a]quinolizin-2-one
InChI Key MKJIEFSOBYUXJB-UHFFFAOYSA-N
Molecular Formula C19H27NO3
8

Noscapine Hydrochloride Hydrate 98.0+%, TCI America™
SDP

CAS: 912-60-7 Molecular Formula: C22H24ClNO7 Molecular Weight (g/mol): 449.88 MDL Number: MFCD00082546 InChI Key: MFLVZFXCSKVCSH-OQICONIUSA-N Synonym: narcotine hydrochloride,noscapine hydrate hydrochloride,narcotine hydrochloride hydrate,c22h23no7.clh.h2o,noscapine hydrochloride monohydrate,noscapine hydrochloride hydrate jp17,noscapine hydrochloride hydrate, analytical standard PubChem CID: 20845981 IUPAC Name: (5S)-5-(4,5-dimethoxy-3-oxo-1,3-dihydro-2-benzofuran-1-yl)-4-methoxy-6-methyl-2H,5H,6H,7H,8H-[1,3]dioxolo[4,5-g]isoquinolin-6-ium chloride SMILES: [Cl-].COC1=CC=C2C(OC(=O)C2=C1OC)[C@H]1[NH+](C)CCC2=CC3=C(OCO3)C(OC)=C12

PubChem CID 20845981
CAS 912-60-7
Molecular Weight (g/mol) 449.88
MDL Number MFCD00082546
SMILES [Cl-].COC1=CC=C2C(OC(=O)C2=C1OC)[C@H]1[NH+](C)CCC2=CC3=C(OCO3)C(OC)=C12
Synonym narcotine hydrochloride,noscapine hydrate hydrochloride,narcotine hydrochloride hydrate,c22h23no7.clh.h2o,noscapine hydrochloride monohydrate,noscapine hydrochloride hydrate jp17,noscapine hydrochloride hydrate, analytical standard
IUPAC Name (5S)-5-(4,5-dimethoxy-3-oxo-1,3-dihydro-2-benzofuran-1-yl)-4-methoxy-6-methyl-2H,5H,6H,7H,8H-[1,3]dioxolo[4,5-g]isoquinolin-6-ium chloride
InChI Key MFLVZFXCSKVCSH-OQICONIUSA-N
Molecular Formula C22H24ClNO7
9

Sigma Aldrich Fine Chemicals Biosciences Tetrabenazine >=98% (HPLC), solid | 58-46-8 | MFCD08461052 | 10MG

Tetrabenazine >=98% (HPLC), solid | Purity: >=98% (HPLC) | Mol Wt: 317.42 | 58-46-8 | MFCD08461052 | 10MG

ENCOMPASS
10

Sigma Aldrich Fine Chemicals Biosciences Salsolinol hydrobromide >=96% (HPLC) | 59709-57-8 | MFCD00012741 | 10MG

Salsolinol hydrobromide >=96% (HPLC) | Purity: >=96% (HPLC) | Mol Wt: 260.13 | 59709-57-8 | MFCD00012741 | 10MG

ENCOMPASS
11

Sigma Aldrich Fine Chemicals Biosciences Salsolinol hydrobromide >=96% (HPLC) | 59709-57-8 | MFCD00012741 | 50MG

Salsolinol hydrobromide >=96% (HPLC) | Purity: >=96% (HPLC) | Mol Wt: 260.13 | 59709-57-8 | MFCD00012741 | 50MG

ENCOMPASS
12

Sigma Aldrich Fine Chemicals Biosciences Tetrabenazine >=98% (HPLC), solid | 58-46-8 | MFCD08461052 | 50MG

Tetrabenazine >=98% (HPLC), solid | Purity: >=98% (HPLC) | Mol Wt: 317.42 | 58-46-8 | MFCD08461052 | 50MG

ENCOMPASS
13

Medchemexpress LLC Nampt-IN-5 | 2380013-17-0 | 98.0% | C25H25N5O2 | 10MG
SDP

Nampt-IN-5 is a research-stage small molecule inhibitor of nicotinamide phosphoribosyltransferase (NAMPT) that demonstrates potent antiproliferative activity in cancer cell lines and has documented metabolic interaction with CYP3A4. The compound is characterized by a defined purity and recommended solvent/formulation guidance for both in vitro and in vivo studies, and is intended for research use only.

  • Potent nicotinamide phosphoribosyltransferase (NAMPT) inhibitor with sub-nanomolar cellular activity.
  • Demonstrated cellular IC50s of 0.7 nM (A2780) and 3.9 nM (COR-L23).
  • Inhibits CYP3A4, enabling metabolic interaction studies.
  • High purity (98.02%) suitable for research applications.
  • Soluble in DMSO and compatible with recommended in vivo formulations.
  • Stable as a powder at -20°C; follow solvent storage guidelines for solutions.

ENCOMPASS_PREFERRED
14

Medchemexpress LLC Ecteinascidin 770 | 114899-80-8 | 99.8% | 770.85 g/mol | C40H42N4O10S | 10 MG
SDP

Ecteinascidin 770 is a 1,2,3,4-tetrahydroisoquinoline alkaloid natural product used in preclinical cancer research for its potent cytotoxic and apoptosis-inducing activities. It is typically handled as a solid and prepared in solvent for in vitro assays, showing low-nanomolar inhibitory potency across several human tumor cell lines.

  • Induces apoptosis in tumor cell lines.
  • Exhibits low-nanomolar potency (reported IC50 values in multiple lines).
  • Molecular formula C40H42N4O10S and molecular weight ~770.85 g/mol.
  • Soluble in DMSO for biological testing.
  • Supplied as a small solid vial suitable for research use.

ENCOMPASS_PREFERRED
15

Medchemexpress LLC 1-(3,4-dihydroxybenzoyl)-6,7-dihydroxy-3-isoquinolinecarboxylic acid | 374620-70-9 | MFCD20274527 | 98.9% | 341.27 g/mol | C17H11NO7 | 5 MG
SDP

NBI-31772 (CAS 374620-70-9) is a non-selective inhibitor of insulin-like growth factor binding proteins (IGFBPs), supplied as an analytical standard for research and analytical applications. It is intended for biochemical assays, ligand-binding studies, and analytical method development, and is offered in small milligram package sizes for research use.

  • Non-selective IGFBP inhibitor for biochemical assays and binding studies.
  • Provided as an analytical standard suitable for method validation and reference.
  • Available in small milligram quantities for research-scale experiments.
  • Chemical identity and purity supported by certificate of analysis and safety data sheet.
  • Soluble in common organic solvents, enabling straightforward assay preparation.

ENCOMPASS_PREFERRED