Pyridines and derivatives

2,6-Pyridinedicarboxylic Acid, 99%, ACROS Organics™

CAS: 499-83-2 Fórmula molecular: C7H5NO4 Molecular Weight (g/mol): 167.12 Número MDL: MFCD00006299 InChI Key: WJJMNDUMQPNECX-UHFFFAOYSA-N Sinónimo: 2,6-pyridinedicarboxylic acid, dipicolinic acid, 2,6-dipicolinic acid, dipicolinate, 2,6-dicarboxypyridine, 2,6-pyridinedicarboxylate, unii-ue81s5cq0g, 2,6-pyridinedicarboxylicacid, ue81s5cq0g, 2,6-pyridinedicarboxylic acid dipicolinic acid PubChem CID: 10367 ChEBI: CHEBI:46837 IUPAC Name: pyridine-2,6-dicarboxylic acid SMILES: C1=CC(=NC(=C1)C(=O)O)C(=O)O 100GR 2,6-Pyridinedicarboxylic acid, 99%

2,2'-Dipyridyl, 99+%, ACROS Organics™

CAS: 366-18-7 Fórmula molecular: C10H8N2 Molecular Weight (g/mol): 156.19 InChI Key: ROFVEXUMMXZLPA-UHFFFAOYSA-N Sinónimo: 2,2'-bipyridine, 2,2'-dipyridyl, 2,2'-bipyridyl, bipyridine, 2,2'-dipyridine, 2-2-pyridyl pyridine, 2,2'-bipyridin, alpha,alpha'-dipyridyl, alpha,alpha'-bipyridyl, 2,2-bipyridyl PubChem CID: 1474 ChEBI: CHEBI:30351 IUPAC Name: 2-pyridin-2-ylpyridine SMILES: C1=CC=NC(=C1)C2=CC=CC=N2 500GR 2,2'-Dipyridyl, 99+%

Nicotinic Acid 99.5%, ACROS Organics™

CAS: 59-67-6 Fórmula molecular: C6H5NO2 Molecular Weight (g/mol): 123.11 Número MDL: MFCD00006391 InChI Key: PVNIIMVLHYAWGP-UHFFFAOYSA-N Sinónimo: nicotinic acid, niacin, 3-pyridinecarboxylic acid, 3-carboxypyridine, wampocap, acidum nicotinicum, apelagrin, pellagrin, akotin, daskil PubChem CID: 938 ChEBI: CHEBI:15940 IUPAC Name: pyridine-3-carboxylic acid SMILES: C1=CC(=CN=C1)C(=O)O 2.5KG Nicotinic acid, 99.5%

Alfa Aesar™ N-Fluoropyridinium trifluoromethanesulfonate, 95%

CAS: 107263-95-6 Fórmula molecular: C6H5F4NO3S Molecular Weight (g/mol): 247.164 Número MDL: MFCD00013458 InChI Key: JFZMMCYRTJBQQI-UHFFFAOYSA-M Sinónimo: 1-fluoropyridinium triflate, n-fluoropyridinium triflate, n-fluoropyridinium trifluoromethanesulfonate, 1-fluoropyridinium trifluoromethanesulfonate, 1-fluoropyridin-1-ium; trifluoromethanesulfonate, acmc-209shu, ksc182s3j, 1-fluoropyridin-1-ium triflate, 1-fluoropyridiniumtriflate PubChem CID: 2724576 IUPAC Name: 1-fluoropyridin-1-ium;trifluoromethanesulfonate SMILES: C1=CC=[N+](C=C1)F.C(F)(F)(F)S(=O)(=O)[O-] N-FLUOROPYRIDINIUM TRIFLUOROMETHANESULPHONATE,,250

Alfa Aesar™ Harmol hydrochloride dihydrate, 98%

CAS: 149022-16-2 Fórmula molecular: C12H15ClN2O3 Molecular Weight (g/mol): 270.713 Número MDL: MFCD00150058 InChI Key: OITPZRQHDRVLMO-UHFFFAOYSA-N Sinónimo: harmol hydrochloride dihydrate, 1-methyl-9h-pyrido 3,4-b indol-7-ol hydrochloride dihydrate, harmol hydrochloride hydrate, harmol dihydrate hydrochloride, c12h10n2o.hcl.2h2o, 1-methyl-2,9-dihydropyrido 3,4-b indol-7-one dihydrate hydrochloride PubChem CID: 2723830 IUPAC Name: 1-methyl-2,9-dihydropyrido[3,4-b]indol-7-one;dihydrate;hydrochloride SMILES: CC1=C2C(=C3C=CC(=O)C=C3N2)C=CN1.O.O.Cl 1GR Harmol hydrochloride dihydrate, 98% 1g

Paraquat dichloride in Water 10μg/mL, Fisher Chemical™

10 ML Metabolite Paraquat dichloride in Water10µg/mL 10mL

Alfa Aesar™ 3-Hydroxy-2-iodopyridine, 98%

CAS: 40263-57-8 Fórmula molecular: C5H4INO Molecular Weight (g/mol): 220.997 Número MDL: MFCD00023421 InChI Key: HJBGMPCMSWJZNH-UHFFFAOYSA-N Sinónimo: 2-iodo-3-hydroxypyridine, 2-iodo-3-pyridinol, 3-hydroxy-2-iodopyridine, 3-pyridinol, 2-iodo, 2-iodo-pyridin-3-ol, 2-iodpyridin-3-ol, 2-iodopyridine-3-ol, acmc-209jcf, 2-iodo-3-hydroxypyridin, 2-iodo-3-hydroxy-pyridine PubChem CID: 97179 IUPAC Name: 2-iodopyridin-3-ol SMILES: C1=CC(=C(N=C1)I)O 2-IODO-3-HYDROXYPYRIDINE, 98%,1G

Alfa Aesar™ 2,2'-Bipyridine, 99+%

CAS: 366-18-7 Fórmula molecular: C10H8N2 Molecular Weight (g/mol): 156.188 Número MDL: MFCD00006212 InChI Key: ROFVEXUMMXZLPA-UHFFFAOYSA-N Sinónimo: 2,2'-bipyridine, 2,2'-dipyridyl, 2,2'-bipyridyl, bipyridine, 2,2'-dipyridine, 2-2-pyridyl pyridine, 2,2'-bipyridin, alpha,alpha'-dipyridyl, alpha,alpha'-bipyridyl, 2,2-bipyridyl PubChem CID: 1474 ChEBI: CHEBI:30351 IUPAC Name: 2-pyridin-2-ylpyridine SMILES: C1=CC=NC(=C1)C2=CC=CC=N2 2,2'-DIPYRIDYL, 99% 500G

4-Chloroquinaldine, 99%, Acros Organics

CAS: 4295-06-1 Fórmula molecular: C10H8ClN Molecular Weight (g/mol): 177.63 InChI Key: HQAIROMRVBVWSK-UHFFFAOYSA-N Sinónimo: 4-chloroquinaldine, quinoline, 4-chloro-2-methyl, 4-chloro-2-methyl-quinoline, 2-methyl-4-chloroquinoline, quinaldine, 4-chloro, 4-chloro-quinaldine, acmc-20a2ui, 4-chloroquinaldine hcl, quinoline,4-chloro-2-methyl PubChem CID: 77973 IUPAC Name: 4-chloro-2-methylquinoline SMILES: CC1=NC2=CC=CC=C2C(=C1)Cl 25GR 4-Chloroquinaldine, 99%

Methyl Viologen hydrate, 98%, ACROS Organics™

CAS: 1910-42-5 Fórmula molecular: C12H14Cl2N2 Molecular Weight (g/mol): 257.158 Número MDL: MFCD00150001 InChI Key: FIKAKWIAUPDISJ-UHFFFAOYSA-L Sinónimo: Paraquat, dichloride PubChem CID: 15938 ChEBI: CHEBI:28786 IUPAC Name: 1-methyl-4-(1-methylpyridin-1-ium-4-yl)pyridin-1-ium;dichloride SMILES: C[N+]1=CC=C(C=C1)C2=CC=[N+](C=C2)C.[Cl-].[Cl-] 1GR Methyl Viologen hydrate, 98%

Tris(2,2'-bipyridine)dichlororuthenium(II) hexahydrate, Red-orange crystalline, >98%, Alfa Aesar™

CAS: 50525-27-4 Fórmula molecular: C30H26Cl2N6ORu Molecular Weight (g/mol): 658.549 Número MDL: MFCD00149670 InChI Key: QCKJEWBYLIDMKR-UHFFFAOYSA-L Sinónimo: tris 2,2'-bipyridyl ruthenium ii chloride hexahydrate PubChem CID: 131664161 IUPAC Name: 2-pyridin-2-ylpyridine;ruthenium(2+);dichloride;hydrate SMILES: C1=CC=NC(=C1)C2=CC=CC=N2.C1=CC=NC(=C1)C2=CC=CC=N2.C1=CC=NC(=C1)C2=CC=CC=N2.O.[Cl-].[Cl-].[Ru+2] TRIS(22'-BIPYRIDINE)RUTHE-NIUM(II) CHLORIDE 2G

Methyl Nicotinate 99%, ACROS Organics™

CAS: 93-60-7 Fórmula molecular: C7H7NO2 Molecular Weight (g/mol): 137.14 Número MDL: MFCD00006388 InChI Key: YNBADRVTZLEFNH-UHFFFAOYSA-N Sinónimo: methyl nicotinate, nikomet, methylnicotinate, nicotinic acid methyl ester, nicometh, methyl 3-pyridinecarboxylate, methyl-nicotinate, 3-pyridinecarboxylic acid, methyl ester, heat spray, nicotinic acid, methyl ester PubChem CID: 7151 IUPAC Name: methyl pyridine-3-carboxylate SMILES: COC(=O)C1=CN=CC=C1 100GR Methyl nicotinate, 99%

2-Iodo-3-hydroxypyridine, 97%, ACROS Organics™

CAS: 40263-57-8 Fórmula molecular: C5H4INO Molecular Weight (g/mol): 220.99 InChI Key: HJBGMPCMSWJZNH-UHFFFAOYSA-N Sinónimo: 2-iodo-3-hydroxypyridine, 2-iodo-3-pyridinol, 3-hydroxy-2-iodopyridine, 3-pyridinol, 2-iodo, 2-iodo-pyridin-3-ol, 2-iodpyridin-3-ol, 2-iodopyridine-3-ol, acmc-209jcf, 2-iodo-3-hydroxypyridin, 2-iodo-3-hydroxy-pyridine PubChem CID: 97179 IUPAC Name: 2-iodopyridin-3-ol SMILES: C1=CC(=C(N=C1)I)O 1GR 3-Hydroxy-2-iodopyridine, 97%

2-Bromoquinoline, 98%, Acros Organics™

CAS: 2005-43-8 Fórmula molecular: C9H6BrN Molecular Weight (g/mol): 208.06 InChI Key: QKJAZPHKNWSXDF-UHFFFAOYSA-N Sinónimo: quinoline, 2-bromo, bromoquinoline, pubchem21827, acmc-1cfcf, 2-bromoquinoline, ksc201o8j, 2-bromoquinoline 1g, abbypharma ap-12-10890 PubChem CID: 2762756 IUPAC Name: 2-bromoquinoline SMILES: C1=CC=C2C(=C1)C=CC(=N2)Br 5GR 2-Bromoquinoline, 98%

Alfa Aesar™ 2-Chloro-6-(trichloromethyl)pyridine, 98%

CAS: 1929-82-4 Fórmula molecular: C6H3Cl4N Molecular Weight (g/mol): 230.897 Número MDL: MFCD00072500 InChI Key: DCUJJWWUNKIJPH-UHFFFAOYSA-N Sinónimo: 2-chloro-6-trichloromethyl pyridine, nitrapyrin, n-serve, pyridine, 2-chloro-6-trichloromethyl, dowco-163, n-serve nitrogen stabilizer, caswell no. 217, nitrapyrine iso-french, unii-8pce86u01w, nitrapyrin ansi:bsi:iso PubChem CID: 16004 ChEBI: CHEBI:81935 IUPAC Name: 2-chloro-6-(trichloromethyl)pyridine SMILES: C1=CC(=NC(=C1)Cl)C(Cl)(Cl)Cl 1GR 2-Chloro-6-(trichloromethyl)pyridine, 98% 1g

Alfa Aesar™ 5-Hydroxypyridine-2-carboxylic acid, ≥98%

CAS: 15069-92-8 Fórmula molecular: C6H5NO3 Molecular Weight (g/mol): 139.11 Número MDL: MFCD00661309 InChI Key: CGRRUFNHHQCLDZ-UHFFFAOYSA-N Sinónimo: 5-hydroxypicolinic acid, 5-hydroxy-2-pyridinecarboxylic acid, 5-hydroxy-pyridine-2-carboxylic acid, 6-carboxy-3-pyridinol, 2-pyridinecarboxylic acid, 5-hydroxy, 5-hydroxy-2-pyridine carboxylic acid, pubchem10094, 5-hydroxypicolinic acidn, acmc-209d4x, ksc171o9d PubChem CID: 268740 IUPAC Name: 5-hydroxypyridine-2-carboxylic acid SMILES: C1=CC(=NC=C1O)C(=O)O 5GR 5-Hydroxypyridine-2-carboxylic acid, 98+% 5g

2,6-Diamino-3-fluoro-4-(trifluoromethyl)pyridine, Maybridge

1GR 2,6-Diamino-3-fluoro-4-(trifluoromethyl)pyridine, 97+%

2-Pyridin-3-ylbenzaldehyde, ≥97%, Maybridge

CAS: 176690-44-1 Fórmula molecular: C12H9NO Molecular Weight (g/mol): 183.21 Número MDL: MFCD02684097 InChI Key: DTUANRRVVJRTJS-UHFFFAOYSA-N Sinónimo: 2-pyridin-3-yl benzaldehyde, 2-pyridin-3-yl-benzaldehyde, 2-3-pyridinyl benzaldehyde, 2-3-pyridyl benzaldehyde, benzaldehyde,2-3-pyridinyl, 2-3-pyrldinyl benzaldehyde, benzaldehyde, 2-3-pyridinyl, pubchem22510, dtuanrrvvjrtjs-uhfffaoysa PubChem CID: 3857593 IUPAC Name: 2-pyridin-3-ylbenzaldehyde SMILES: C1=CC=C(C(=C1)C=O)C2=CN=CC=C2 250MG 2-Pyridin-3-ylbenzaldehyde, 97%

Alfa Aesar™ 2-Chloro-5-hydroxy-3-methylpyridine, 97%

CAS: 54232-03-0 Fórmula molecular: C6H6ClNO Molecular Weight (g/mol): 143.57 Número MDL: MFCD11519295 InChI Key: UGDSWVXJJFIVAH-UHFFFAOYSA-N Sinónimo: 2-chloro-5-hydroxy-3-methylpyridine, 2-chloro-5-hydroxy-3-methylpyrdine, 6-chloro-5-methyl-pyridin-3-ol, 3-pyridinol, 6-chloro-5-methyl, 2-chloro-5-hydroxy-3-picoline, 6-chloro-5-methyl-3-pyridinol, 2-chloro-3-methyl-5-hydroxypyridine, pubchem12478, acmc-209len, 6-chloro-5-methylpyridine-3-ol PubChem CID: 12852015 IUPAC Name: 6-chloro-5-methylpyridin-3-ol SMILES: CC1=CC(=CN=C1Cl)O 1GR 2-Chloro-5-hydroxy-3-methylpyridine, 97% 1g

Pyridoxine Hydrochloride, Fisher BioReagents

CAS: 58-56-0 Fórmula molecular: C8H12ClNO3 Molecular Weight (g/mol): 205.638 InChI Key: ZUFQODAHGAHPFQ-UHFFFAOYSA-N Sinónimo: pyridoxine hydrochloride, pyridoxine hcl, pyridoxol hydrochloride, vitamin b6, alestrol, becilan, benadon, hexavibex, hexermin, hexobion PubChem CID: 6019 ChEBI: CHEBI:30961 IUPAC Name: 4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol;hydrochloride SMILES: CC1=NC=C(C(=C1O)CO)CO.Cl 50GR Pyridoxine hydrochloride (White Powder),

2-chloro-6-methyl-4-(trifluoromethyl)pyridine, 97%, Maybridge

CAS: 22123-14-4 Fórmula molecular: C7H5ClF3N Molecular Weight (g/mol): 195.569 Número MDL: MFCD00052900 InChI Key: SXLBWNSGCIEART-UHFFFAOYSA-N Sinónimo: 2-chloro-6-methyl-4-trifluoromethyl pyridine, 2-chloro-6-methyl-4-trifluoromethyl-pyridine, 2-chlor-6-methyl-4-trifluormethyl pyridine, 2-chloro-4-trifluoromethyl-6-methylpyridine, pyridine, 2-chloro-6-methyl-4-trifluoromethyl, pubchem9219, 6-chloro-4-trifluoromethyl-2-picoline, 2-chloranyl-6-methyl-4-trifluoromethyl pyridine PubChem CID: 2736626 IUPAC Name: 2-chloro-6-methyl-4-(trifluoromethyl)pyridine SMILES: CC1=NC(=CC(=C1)C(F)(F)F)Cl 10GR 2-Chloro-6-methyl-4-(trifluoromethyl)pyridine, 97%

Alfa Aesar™ 2,3-Dibromopyridine-4-carboxylic acid, 97%

CAS: 1020056-98-7 Fórmula molecular: C6H3Br2NO2 Molecular Weight (g/mol): 280.903 Número MDL: MFCD09997708 InChI Key: ICISUZSRQHUJKX-UHFFFAOYSA-N Sinónimo: 2,3-dibromoisonicotinic acid, 2,3-dibromo-4-pyridinecarboxylic acid, acmc-20ahus, 2,3-dibromopyridine-4-carboxylicacid PubChem CID: 26967070 IUPAC Name: 2,3-dibromopyridine-4-carboxylic acid SMILES: C1=CN=C(C(=C1C(=O)O)Br)Br 1GR 2,3-Dibromopyridine-4-carboxylic acid, 97% 1g

Alfa Aesar™ 2,4,6-Trifluoropyridine, 97%

CAS: 3512-17-2 Fórmula molecular: C5H2F3N Molecular Weight (g/mol): 133.073 Número MDL: MFCD03001161 InChI Key: UZDRWXKBKVVUTE-UHFFFAOYSA-N Sinónimo: 2,4,6-trifluoro-pyridine, pyridine, 2,4,6-trifluoro, pubchem7794, 2,4,6 trifluoropyridine, acmc-1cp7f, 2,4,6-tris fluoranyl pyridine PubChem CID: 2783289 IUPAC Name: 2,4,6-trifluoropyridine SMILES: C1=C(C=C(N=C1F)F)F 2,4,6-TRIFLUOROPYRIDINE, 98+%,25G

Alfa Aesar™ 3,5-Dibromo-4-methoxypyridine, 98%

CAS: 650140-84-4 Fórmula molecular: C6H5Br2NO2 Molecular Weight (g/mol): 282.919 Número MDL: MFCD13185524 InChI Key: KAYQEYHOGFRTAL-UHFFFAOYSA-N Sinónimo: 3,5-dibromo-4-methoxypyridine 1-oxide, 3,5-dibromo-4-methoxypyridine-n-oxide, 3,5-dibromo-4-methoxypyridin-1-ium-1-olate, pubchem6614 PubChem CID: 2784723 IUPAC Name: 3,5-dibromo-4-methoxy-1-oxidopyridin-1-ium SMILES: COC1=C(C=[N+](C=C1Br)[O-])Br 5GR 3,5-Dibromo-4-methoxypyridine, 98% 5g

2-Amino-5-bromopyridine 97%, ACROS Organics™

CAS: 1072-97-5 Fórmula molecular: C5H5BrN2 Molecular Weight (g/mol): 173.01 Número MDL: MFCD00006323 InChI Key: WGOLHUGPTDEKCF-UHFFFAOYSA-N Sinónimo: 2-amino-5-bromopyridine, 2-pyridinamine, 5-bromo, 5-bromo-2-pyridylamine, 5-bromo-2-aminopyridine, 5-bromo-2-pyridinamine, 5-bromopyridin-2-ylamine, unii-d5qe8xw52u, 5-bromo-pyridin-2-ylamine, 2-amino-5-bromo pyridine, d5qe8xw52u PubChem CID: 70622 IUPAC Name: 5-bromopyridin-2-amine SMILES: C1=CC(=NC=C1Br)N 25GR 2-Amino-5-bromopyridine, 97%

Alfa Aesar™ 2-Amino-4-methyl-5-nitropyridine, 98%

CAS: 21901-40-6 Fórmula molecular: C6H7N3O2 Molecular Weight (g/mol): 153.141 Número MDL: MFCD00010692 InChI Key: GRBBNZYMXKTQAI-UHFFFAOYSA-N Sinónimo: 2-amino-4-methyl-5-nitropyridine, 2-amino-5-nitro-4-picoline, 2-amino-4-methyl-5-nitro pyridine, 4-methyl-5-nitro-2-pyridinamine, 4-methyl-5-nitro-2-pyridylamine, 2-pyridinamine, 4-methyl-5-nitro, 4-methyl-5-nitro-pyridin-2-ylamine, 2-amino-5-nitro-4-methylpyridine, 4-methyl-5-nitropyridin-2-amin, 2-amino-5-nitro-4-picoline 2-amino-4-methyl-5-nitropyridine PubChem CID: 243165 IUPAC Name: 4-methyl-5-nitropyridin-2-amine SMILES: CC1=CC(=NC=C1[N+](=O)[O-])N 2-AMINO-4-METHYL-5-NITROPYRIDINE, 98%,1G

Alfa Aesar™ 2-Bromo-3-(chloromethyl)pyridine, 96%

CAS: 944906-87-0 Fórmula molecular: C6H5BrClN Molecular Weight (g/mol): 206.467 Número MDL: MFCD10697618 InChI Key: OWRYEOOYOHXZJX-UHFFFAOYSA-N Sinónimo: 2-bromo-3-chloromethyl pyridine, pyridine, 2-bromo-3-chloromethyl, 2-bromo-3-chloromethylene pyridine PubChem CID: 53416632 IUPAC Name: 2-bromo-3-(chloromethyl)pyridine SMILES: C1=CC(=C(N=C1)Br)CCl 250MG 2-Bromo-3-(chloromethyl)pyridine, 96% 250mg

Picolinamide, 98%, Acros Organics™

CAS: 1452-77-3 Fórmula molecular: C6H6N2O Molecular Weight (g/mol): 122.127 InChI Key: IBBMAWULFFBRKK-UHFFFAOYSA-N Sinónimo: picolinamide, 2-pyridinecarboxamide, picolinoylamide, 2-carbamoylpyridine, picolinic acid amide, 2-picolinamide, 2-aminocarbonyl-pyridine, alpha-picolinamide, pyridinecarboxamide, unii-i3550ccl59 PubChem CID: 15070 ChEBI: CHEBI:8200 IUPAC Name: pyridine-2-carboxamide SMILES: C1=CC=NC(=C1)C(=O)N 50GR Picolinamide, 98%

Alfa Aesar™ 2-Chloro-3-(trifluoromethyl)pyridine, 98%

CAS: 65753-47-1 Fórmula molecular: C6H3ClF3N Molecular Weight (g/mol): 181.542 Número MDL: MFCD00042223 InChI Key: RXATZPCCMYMPME-UHFFFAOYSA-N Sinónimo: 2-chloro-3-trifluoromethyl pyridine, 2-chloro-3-trifluoro methylpyridine, pyridine, 2-chloro-3-trifluoromethyl, 2,3-ctf, 2-chloro-3-trifluoromethyl-pyridine, 3-trifluoromethyl-2-chloropyridine, zlchem 248, pubchem2399, acmc-1bejp, ksc352q1t PubChem CID: 589833 IUPAC Name: 2-chloro-3-(trifluoromethyl)pyridine SMILES: C1=CC(=C(N=C1)Cl)C(F)(F)F 2-CHLORO-3-(TRIFLUOROMETHYL)PYRIDINE, 98%,1G

Alfa Aesar™ 3-Fluoro-5-iodopyridine, 95%

CAS: 757950-13-3 Fórmula molecular: C5H3FIN Molecular Weight (g/mol): 222.989 Número MDL: MFCD08457780 InChI Key: MMJSSIRVEYQWMU-UHFFFAOYSA-N Sinónimo: 3-fluoro-5-iodo-pyridine, pyridine, 3-fluoro-5-iodo, 3-fluoro-5-iodo-pyridin, pyridine,3-fluoro-5-iodo, 3-fluoranyl-5-iodanyl-pyridine, 3-iodo-5-fluoropyridine, 5-fluoro-3-iodopyridine PubChem CID: 18454778 IUPAC Name: 3-fluoro-5-iodopyridine SMILES: C1=C(C=NC=C1I)F 250MG 3-Fluoro-5-iodopyridine, 95% 250mg

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