Molecular formula
C23H26N4O3
177 compounds have this formula on CompoundList.
- Molar mass
- 406.49g/mol
- Monoisotopic mass
- 406.2005Da
- Atoms
- 56
- Elements
- 4
- Rings plus double bonds
- 13
The formula C23H26N4O3 describes a molecule made of 23 carbon atoms, 26 hydrogen atoms, 4 nitrogen atoms and 3 oxygen atoms. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- C Carbon × 2367.96%12.011 × 23 = 276.253 g/mol
- H Hydrogen × 266.45%1.008 × 26 = 26.208 g/mol
- N Nitrogen × 413.78%14.007 × 4 = 56.028 g/mol
- O Oxygen × 311.81%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C23H26N4O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 177 compounds
Samotolisib
CAS 1386874-06-1C23H26N4O3
![N-[[2-Methyl-5-(3-methyl-4-oxophthalazin-1-yl)phenyl]methyl]-2-morpholin-4-ylacetamide chemical structure, C23H26N4O3, CAS 694456-39-8](/s/BGAUTUXCUXJHRE-UHFFFAOYSA-N.svg)
N-[[2-Methyl-5-(3-methyl-4-oxophthalazin-1-yl)phenyl]methyl]-2-morpholin-4-ylacetamide
CAS 694456-39-8C23H26N4O3
![2-[4-(4-Methylphenyl)-1-oxophthalazin-2-yl]-N-(2-morpholin-4-ylethyl)acetamide chemical structure, C23H26N4O3, CAS 695200-55-6](/s/KRPXXEXXWOSCKJ-UHFFFAOYSA-N.svg)
2-[4-(4-Methylphenyl)-1-oxophthalazin-2-yl]-N-(2-morpholin-4-ylethyl)acetamide
CAS 695200-55-6C23H26N4O3
![N-[5-(4-Methoxy-1-phthalazinyl)-2-(4-morpholinyl)phenyl]butanamide chemical structure, C23H26N4O3, CAS 575466-59-0](/s/FOSGYBHCSIOYBR-UHFFFAOYSA-N.svg)
N-[5-(4-Methoxy-1-phthalazinyl)-2-(4-morpholinyl)phenyl]butanamide
CAS 575466-59-0C23H26N4O3
![N-[5-(3-Methyl-4-oxophthalazin-1-yl)-2-morpholin-4-ylphenyl]butanamide chemical structure, C23H26N4O3, CAS 684235-26-5](/s/BDTVDIQAIFPRKL-UHFFFAOYSA-N.svg)
N-[5-(3-Methyl-4-oxophthalazin-1-yl)-2-morpholin-4-ylphenyl]butanamide
CAS 684235-26-5C23H26N4O3
3-(3-(4-(2,3-Dimethylphenyl)piperazin-1-yl)-3-oxopropyl)quinazoline-2,4(1H,3H)-dione
CAS 879582-85-1C23H26N4O3
7-(4-Ethylpiperazine-1-carbonyl)-3-phenethylquinazoline-2,4(1H,3H)-dione
CAS 892284-41-2C23H26N4O3
4-((5-Adamantan-1-YL-2H-pyrazole-3-carbonyl)-hydrazono-ME)-benzoic acid ME ester
CAS 307320-69-0C23H26N4O3
N'-(3-Ethoxy-4-HO-benzylidene)-3-(4-isobutylphenyl)-1H-pyrazole-5-carbohydrazide
CAS 303107-08-6C23H26N4O3
2,4-Dioxo-3-(2-phenylethyl)-N-(2-pyrrolidin-1-ylethyl)-1,2,3,4-tetrahydroquinazoline-7-carboxamide
CAS 892284-57-0C23H26N4O3
![3-({4-Nitro-1H-pyrazol-1-yl}methyl)-N-[1-(4-isopropylphenyl)propyl]benzamide chemical structure, C23H26N4O3, CAS 512823-31-3](/s/ZKXPVBFMXGXDAG-UHFFFAOYSA-N.svg)
3-({4-Nitro-1H-pyrazol-1-yl}methyl)-N-[1-(4-isopropylphenyl)propyl]benzamide
CAS 512823-31-3C23H26N4O3
![N-[1-(4-tert-Butylphenyl)ethyl]-3-[(4-nitropyrazol-1-yl)methyl]benzamide chemical structure, C23H26N4O3, CAS 512825-49-9](/s/QGXURXVGPIJLIT-UHFFFAOYSA-N.svg)
N-[1-(4-tert-Butylphenyl)ethyl]-3-[(4-nitropyrazol-1-yl)methyl]benzamide
CAS 512825-49-9C23H26N4O3
![N'-[3-(4-Benzylpiperazin-1-yl)propanoyl]-1-benzofuran-2-carbohydrazide chemical structure, C23H26N4O3, CAS 853339-70-5](/s/NEXDHBITSLPZDK-UHFFFAOYSA-N.svg)
N'-[3-(4-Benzylpiperazin-1-yl)propanoyl]-1-benzofuran-2-carbohydrazide
CAS 853339-70-5C23H26N4O3
N-(4,6-Dimethylpyrimidin-2-yl)-2-(1,3-dioxooctahydro-2H-isoindol-2-yl)-3-phenylpropanamide
CAS 439294-80-1C23H26N4O3
3-(3-(4-(2,5-Dimethylphenyl)piperazin-1-yl)-3-oxopropyl)quinazoline-2,4(1H,3H)-dione
CAS 896372-84-2C23H26N4O3
1-(2-(3-Hydroxy-4-(4-phenyl-1H-pyrazol-3-yl)phenoxy)ethyl)piperidine-4-carboxamide
CAS 1010869-76-7C23H26N4O3
![1-[1-(4-Methylphenyl)-5-oxopyrrolidine-3-carbonyl]-N-pyridin-3-ylpiperidine-4-carboxamide chemical structure, C23H26N4O3, CAS 887673-58-7](/s/WRCLSWZSHHUBLZ-UHFFFAOYSA-N.svg)
1-[1-(4-Methylphenyl)-5-oxopyrrolidine-3-carbonyl]-N-pyridin-3-ylpiperidine-4-carboxamide
CAS 887673-58-7C23H26N4O3
![2-{3-Cyclohexyl-2,4-dioxo-1H,2H,3H,4H-pyrido[2,3-d]pyrimidin-1-yl}-N-(4-ethylphenyl)acetamide chemical structure, C23H26N4O3, CAS 902922-32-1](/s/WMERWAURHVSCAP-UHFFFAOYSA-N.svg)
2-{3-Cyclohexyl-2,4-dioxo-1H,2H,3H,4H-pyrido[2,3-d]pyrimidin-1-yl}-N-(4-ethylphenyl)acetamide
CAS 902922-32-1C23H26N4O3
N-(1-(2-(Cyclopentylamino)-2-oxoethyl)-3-oxo-2-phenyl-2,3-dihydro-1H-indazol-5-yl)propionamide
CAS 1251674-48-2C23H26N4O3
1-(6-(4-Ethylphenoxy)pyrimidin-4-yl)-N-(furan-2-ylmethyl)piperidine-4-carboxamide
CAS 1251703-44-2C23H26N4O3
![N-Benzyl-2-(2-(4-methoxyphenyl)-3-oxo-1,4,8-triazaspiro[4.5]dec-1-en-8-yl)acetamide chemical structure, C23H26N4O3, CAS 932291-95-7](/s/GUFMKGGXAFSORJ-UHFFFAOYSA-N.svg)
N-Benzyl-2-(2-(4-methoxyphenyl)-3-oxo-1,4,8-triazaspiro[4.5]dec-1-en-8-yl)acetamide
CAS 932291-95-7C23H26N4O3
![5-{1-[(3-Methylphenoxy)acetyl]piperidin-4-yl}-4-(4-methylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one chemical structure, C23H26N4O3, CAS 1775391-81-5](/s/KUGQSAJRZLVVLW-UHFFFAOYSA-N.svg)
5-{1-[(3-Methylphenoxy)acetyl]piperidin-4-yl}-4-(4-methylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS 1775391-81-5C23H26N4O3
![4-(4-Methoxybenzyl)-5-[1-(3-methylbenzoyl)piperidin-4-yl]-2,4-dihydro-3H-1,2,4-triazol-3-one chemical structure, C23H26N4O3, CAS 1775518-46-1](/s/LMFYINYSOUWGNK-UHFFFAOYSA-N.svg)
4-(4-Methoxybenzyl)-5-[1-(3-methylbenzoyl)piperidin-4-yl]-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS 1775518-46-1C23H26N4O3
![4-(4-Methoxybenzyl)-5-[1-(4-methylbenzoyl)piperidin-4-yl]-2,4-dihydro-3H-1,2,4-triazol-3-one chemical structure, C23H26N4O3, CAS 1775526-24-3](/s/HJTREXKAJFCXGA-UHFFFAOYSA-N.svg)
4-(4-Methoxybenzyl)-5-[1-(4-methylbenzoyl)piperidin-4-yl]-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS 1775526-24-3C23H26N4O3
- 5-[1-(3-Methoxybenzoyl)piperidin-4-yl]-4-(4-methylbenzyl)-2,4-dihydro-3H-1,2,4-triazol-3-one1775548-62-3C23H26N4O3
- N-(4-Methoxyphenyl)-2-(3-oxo-2-(p-tolyl)-1,4,8-triazaspiro[4.5]dec-1-en-8-yl)acetamide932476-01-2C23H26N4O3
- 2-[2-(4-Methoxyphenyl)-3-oxo-1,4,8-triazaspiro[4.5]dec-1-en-8-yl]-N-(2-methylphenyl)acetamide932504-39-7C23H26N4O3
- 4-(Dimethylamino)-N-(2-(3-(4-ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide921533-95-1C23H26N4O3
- N-(2-Methoxyphenyl)-2-{4-[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]piperidin-1-yl}acetamide1251679-12-5C23H26N4O3
- N-(2-Methoxyphenyl)-2-{4-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]piperidin-1-yl}acetamide1251603-66-3C23H26N4O3
- Methanone, [4-(hydroxydiphenylMethyl)-2H-1,2,3-triazol-2-yl][2-(MethoxyMethyl)-1-piperidinyl]-1361531-54-5C23H26N4O3
- N-Cyclohexyl-2-[4,6-dimethyl-2-oxo-3-(3-phenyl-1,2,4-oxadiazol-5-yl)-1,2-dihydropyridin-1-yl]acetamide1040683-56-4C23H26N4O3
- N1-((1-(furan-2-ylmethyl)piperidin-4-yl)methyl)-N2-(2-methylquinolin-4-yl)oxalamide953230-31-4C23H26N4O3
- 1-(2,4-Dimethylphenyl)-3-{2-[3-(4-ethoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]ethyl}urea1049205-37-9C23H26N4O3
- Argentine37551-61-4C23H26N4O3
- 1-(1-(3-Methoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(2-(2-methyl-1H-indol-1-yl)ethyl)urea894022-34-5C23H26N4O3
- 1-(1-(4-Ethoxyphenyl)-5-oxopyrrolidin-3-yl)-3-((2-methyl-1H-indol-5-yl)methyl)urea894019-75-1C23H26N4O3
- 1 suppliers(Rac)-SHIN22204289-53-0C23H26N4O3
- Icalcaprant2227384-17-8C23H26N4O3
- 4,4'-Diantipyrylmethane 1-hydrate71501-10-5C23H26N4O3
- 4-[(3-{[4-(2-Hydroxyethyl)-1,4-diazepan-1-yl]carbonyl}phenyl)methyl]-1,2-dihydrophthalazin-1-one763111-57-5C23H26N4O3
- 6,7-Dimethoxy-4-(4-(2-methoxyphenyl)piperazin-1-yl)-2-vinylquinazoline1448676-57-0C23H26N4O3
- 1-(2-(1H-Indol-3-yl)ethyl)-3-(1-(4-ethoxyphenyl)-5-oxopyrrolidin-3-yl)urea894019-25-1C23H26N4O3
- N-Butyl-6-(6,7-dimethoxyquinolin-4-yloxy)-1-methyl-1H-indazol-3-amine862178-80-1C23H26N4O3
- 2-Methoxyethyl 4-[4-(dimethylamino)phenyl]-2-methyl-1,4-dihydropyrimido[1,2-a]benzimidazole-3-carboxylate879599-55-0C23H26N4O3
- 3-Oxo-2-[2-oxo-2-(phenylamino)ethyl]-N-phenyloctahydroquinoxaline-1(2H)-carboxamide1008665-52-8C23H26N4O3
- 2-{2-[1-(4-Methoxyphenyl)-5-oxopyrrolidin-3-yl]benzimidazolyl}-N-(methylethyl) acetamide1018125-22-8C23H26N4O3
- 2-(4-Benzylpiperazin-1-yl)-6-(3,4-dimethoxyphenyl)pyrimidin-4(3H)-one905809-60-1C23H26N4O3
- 2-[4-(1,3-Benzodioxol-5-ylmethyl)piperazin-1-yl]-1-(5-phenyl-4,5-dihydro-1H-pyrazol-1-yl)ethanone727392-14-5C23H26N4O3
- 2-(3,4-Dimethoxyphenyl)-N-(4-methylpiperazin-1-yl)quinoline-4-carboxamide353782-06-6C23H26N4O3
- Ethyl 4-{5-oxo-7-[(E)-2-phenylethenyl]-5,6,7,8-tetrahydroquinazolin-2-yl}piperazine-1-carboxylate879063-91-9C23H26N4O3
- N-(1-Benzylpiperidin-4-yl)-3-(2-hydroxy-4-oxoquinazolin-3(4H)-yl)propanamide896372-39-7C23H26N4O3
- Ethyl 4-(2-(4-(1H-benzo[d]imidazol-2-yl)piperidin-1-yl)acetamido)benzoate605625-69-2C23H26N4O3
- 3-[5-Oxo-5-(4-phenylpiperazin-1-yl)pentyl]-1,2,3,4-tetrahydroquinazoline-2,4-dione896355-27-4C23H26N4O3
- Pcsk9-IN-312247649-76-7C23H26N4O3
- (1-(4-Ethylphenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazol-4-yl)(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)methanone1206984-67-9C23H26N4O3
- 4-(4-(Dimethylamino)phenyl)-6-(4-methoxyphenethyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione1171782-34-5C23H26N4O3
- 9,10-Dimethyl-12-[4-(pyridin-2-yl)piperazine-1-carbonyl]-8-oxa-10-azatricyclo[7.3.1.0^{2,7}]trideca-2,4,6-trien-11-one1212299-33-6C23H26N4O3
- 2-(4-(3-Methoxyphenyl)-3-morpholino-1H-pyrazol-1-yl)-N-(o-tolyl)acetamide1286706-72-6C23H26N4O3
- 1-(2-(4-Benzylpiperidin-1-yl)-2-oxoethyl)-4-cyclopropyl-3-(furan-2-yl)-1H-1,2,4-triazol-5(4H)-one1797260-94-6C23H26N4O3
- 3-(2-Methoxyphenyl)-N-{1-[(5-phenyl-1,2,4-oxadiazol-3-yl)methyl]pyrrolidin-3-yl}propanamide1396864-33-7C23H26N4O3
- 4-[1,3-Benzodioxol-5-yl-(4-methylpiperazin-1-yl)methyl]-5-methyl-2-phenyl-4H-pyrazol-3-one1023519-27-8C23H26N4O3
- N-[(3,4-Dimethoxyphenyl)methyl]-1-(quinoxalin-2-yl)piperidine-3-carboxamide941923-80-4C23H26N4O3
- N-[(3,4-Dimethoxyphenyl)methyl]-1-(quinoxalin-2-yl)piperidine-4-carboxamide941898-90-4C23H26N4O3
- 2-[1-(3,4-Dihydroisoquinolin-2(1H)-ylacetyl)-3-oxopiperazin-2-yl]-N-phenylacetamide1092834-74-6C23H26N4O3
- 1-(1-(4-Methoxyphenyl)-5-oxopyrrolidin-3-yl)-3-(2-(2-methyl-1H-indol-1-yl)ethyl)urea877640-63-6C23H26N4O3
- 2-{3-Cyclohexyl-2,4-dioxo-1H,2H,3H,4H-pyrido[2,3-d]pyrimidin-1-yl}-N-(3,5-dimethylphenyl)acetamide902922-67-2C23H26N4O3
- 2-(1,3-Dioxoisoindolin-2-yl)-N-(3-(4-phenylpiperazin-1-yl)propyl)acetamide1049396-90-8C23H26N4O3
- 1-Ethyl-3-{[4-(4-methoxyphenyl)piperazino]carbonyl}-7-methyl[1,8]naphthyridin-4(1H)-one1010917-46-0C23H26N4O3
- N-(3,4-Dimethoxyphenyl)-7-methyl-3-(piperidine-1-carbonyl)-1,8-naphthyridin-4-amine1251704-61-6C23H26N4O3
- N-(3-Methoxyphenyl)-2-(3-morpholino-4-(p-tolyl)-1H-pyrazol-1-yl)acetamide1286714-61-1C23H26N4O3
- [3-(4-Methoxyphenyl)-1-methyl-1H-pyrazol-5-yl][4-(3-methoxyphenyl)piperazino]methanone1374542-49-0C23H26N4O3
- 2-(2,2-Dimethyl-3,4-dihydro-2H-chromen-6-yl)-N-{4-[5-(methoxymethyl)-1H-1,2,4-triazol-3-yl]phenyl}acetamide1380578-25-5C23H26N4O3
- 1-(3-(2H-1,2,3-Triazol-2-yl)benzyl)-7-(2,6-dimethoxyphenyl)azepan-2-one1375093-95-0C23H26N4O3
- N-{3-[2-(4-Methoxyphenyl)ethyl]-1H-1,2,4-triazol-5-yl}-4-phenyltetrahydro-2H-pyran-4-carboxamide1574364-13-8C23H26N4O3
- Methyl 4-{[4-(1-methyl-5-oxo-4-phenyl-4,5-dihydro-1H-1,2,4-triazol-3-yl)piperidin-1-yl]methyl}benzoate1396759-28-6C23H26N4O3
- 1-(Benzo[d]oxazol-2-yl)-N-(pyridin-3-yl(tetrahydro-2H-pyran-4-yl)methyl)pyrrolidine-2-carboxamide2034206-49-8C23H26N4O3
- Benzamide, N-(1-(antipyrinylcarbamoyl)-2-methylpropyl)-81216-99-1C23H26N4O3
- Oxayohimban-16-carboxylic acid, 16,17-didehydro-19-methyl-, (19-alpha,20-alpha)-, compd. with 1H-imidazole (1:1)77754-99-5C23H26N4O3
- 1,2,4-Triazolo(3,4-a)phthalazine, 6-ethoxy-3-(3-methoxy-4-(pentyloxy)phenyl)-87540-48-5C23H26N4O3
- 1H-Indole-2-carboxylic acid, 3-(2-oxo-2-((2-(4-phenyl-1-piperazinyl)ethyl)amino)ethyl)-184691-28-9C23H26N4O3
- 2-(3-Methylbutyl)-5-{[4-(pyridin-2-yl)piperazin-1-yl]carbonyl}-1H-isoindole-1,3(2H)-dione1144486-84-9C23H26N4O3
- 1-Ethyl-7-methyl-N-[4-(morpholin-4-ylmethyl)phenyl]-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamide1010897-07-0C23H26N4O3
- 1-(1H-Indazole-3-carbonyl)-N-(2-methoxyphenethyl)piperidine-4-carboxamide946262-02-8C23H26N4O3
- 5-Oxo-N-(2-oxo-2-(4-phenylpiperazin-1-yl)ethyl)-1-phenylpyrrolidine-3-carboxamide1144464-47-0C23H26N4O3
- [3-(4-Methoxyphenyl)-1-methyl-1H-pyrazol-5-yl][4-(2-methoxyphenyl)piperazino]methanone1170474-24-4C23H26N4O3
- [3-(4-Methoxyphenyl)-1-methyl-1H-pyrazol-5-yl][4-(4-methoxyphenyl)piperazino]methanone1171142-01-0C23H26N4O3
- 3-(3-Hydroxypropyl)-7,8-dimethyl-1-(4-phenoxyphenyl)-1,2,3,4-tetrahydro-6H-pyrimido[1,2-a][1,3,5]triazin-6-one1158454-58-0C23H26N4O3
- N-(3,4-Dimethylphenyl)-7-methyl-4-oxo-1-(2-oxo-2-(propylamino)ethyl)-1,4-dihydro-1,8-naphthyridine-3-carboxamide1251544-15-6C23H26N4O3
- Ethyl 4-{[3-(diethylcarbamoyl)-7-methyl-1,8-naphthyridin-4-yl]amino}benzoate1251565-87-3C23H26N4O3
- 1-(4-(2,5-Dimethylphenyl)piperazin-1-yl)-2-(5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl)ethanone1251673-06-9C23H26N4O3
- 2-Methyl-N-((1-(2-phenoxyacetyl)piperidin-4-yl)methyl)imidazo[1,2-a]pyridine-3-carboxamide1325689-46-0C23H26N4O3
- N-(2-Methoxy-5-methylphenyl)-2-(3-morpholino-4-phenyl-1H-pyrazol-1-yl)acetamide1286696-43-2C23H26N4O3
- N-(2-Methoxyphenyl)-2-(3-morpholino-4-(p-tolyl)-1H-pyrazol-1-yl)acetamide1286724-95-5C23H26N4O3
- 2-(4-(4-Methoxyphenyl)-3-morpholino-1H-pyrazol-1-yl)-N-(p-tolyl)acetamide1286699-46-4C23H26N4O3
- N-(2-Methoxyphenyl)-2-(3-morpholino-4-(o-tolyl)-1H-pyrazol-1-yl)acetamide1286713-22-1C23H26N4O3
- N-Benzyl-2-(4-(3-methoxyphenyl)-3-morpholino-1H-pyrazol-1-yl)acetamide1286696-65-8C23H26N4O3
- N-[3-(Morpholin-4-yl)propyl]-1-oxo-2-(pyridin-2-ylmethyl)-1,2-dihydroisoquinoline-4-carboxamide1401595-97-8C23H26N4O3
- 6-(2-Methoxyphenyl)-2-{[4-(4-methoxyphenyl)piperazin-1-yl]methyl}pyridazin-3(2H)-one1401598-35-3C23H26N4O3
- 2-(4-Isopropylphenoxy)-1-(4-(pyrazolo[1,5-a]pyridine-3-carbonyl)piperazin-1-yl)ethanone1396564-61-6C23H26N4O3
Frequently asked questions
What is the molar mass of C23H26N4O3?
The molar mass of C23H26N4O3 is 406.49 g/mol, calculated from standard atomic weights for 23 carbon atoms, 26 hydrogen atoms, 4 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 406.2005 Da.
How many compounds have the formula C23H26N4O3?
CompoundList lists 177 compounds with the molecular formula C23H26N4O3, including Samotolisib, N-[[2-Methyl-5-(3-methyl-4-oxophthalazin-1-yl)phenyl]methyl]-2-morpholin-4-ylacetamide, 2-[4-(4-Methylphenyl)-1-oxophthalazin-2-yl]-N-(2-morpholin-4-ylethyl)acetamide. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.
What is the degree of unsaturation of C23H26N4O3?
C23H26N4O3 has a degree of unsaturation of 13. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.