EOS95131

Name:
EOS:	EOS95131
CAS:
Synonyms:
Tags:
Compound Library:	European Chemical Biology Library

Basic Properties:

Formula:	C16H12N4O4
Molecular Weight:	324.30
Rotatable Bond Donors:	4
clogP:	1.99
Topological Polar Surface Area:	114.17
Lipinski's RO5:	MW: 324.30 HBA: 8 HBD: 1 RB: 4 LogP: 1.99
Rule of Three:	MW: 324.30 HBA: 8 HBD: 1 RB: 4 LogP: 1.99

Additional Data:

Other Descriptors

Feature	Value
FP3 Fingerprint:	0.13
NHs/OHs:	1
Nitrogens and Oxygens:	8
Aliphatic Carbocycles:	0
Aliphatic Heterocycles:	0
Aliphatic Rings:	0
Aromatic Carbocycles:	1
Aromatic Heterocycles:	2
Aromatic Rings:	3
Heteroatoms:	8
Radical Electrons:	0
Saturated Carbocycles:	0
Saturated Heterocycles:	0
Saturated Rings:	0
Valence Electrons:	120
Rings:	3
Aliphatic Carboxylic Acids:	0
Aliphatic Hydroxyl Groups:	0
Aliphatic Hydroxyl Groups Excluding Tert-OH:	0
Nitrogen Functional Groups Attached to Aromatics:	0
Aromatic Carboxylic Acide:	0
Aromatic Nitrogens:	3
Aromatic Amines:	0
Aromatic Hydroxyl Groups:	1
Carboxylic Acids (COO):	0
Carboxylic Acids (COO2):	0
Carbonyl Oxygens:	1
Carbonyl Oxygens, excluding COOH:	1
Thiocarbonyls:	0
C(OH)CCN-Ctert-alkyls/C(OH)CCNcyclics:	0
Imines:	0
Tertiary Amines:	4
Secondary Amines:	0
Primary Amines:	0
Hydroxylamine Groups:	0
XCCNR Groups:	0
Tert-alicyclic Amines (no heteroatoms, not quinine-like bridged N):	0
H-pyrrole nitrogens:	0
Thiol groups:	0
Aldehydes:	0
Alkyl Carbamates (subject to hydrolysis):	0
Alkyl Halides:	0
Allylic Oxidation Sites excluding Steroid Dienone:	0
Amides:	0
Amidine Groups:	0
Anilines:	0
Aryl Methyl Sites for Hydroxylation:	1
Azide Groups:	0
Azo Groups:	0
Barbiturate Groups:	0
Benzene Rings:	1
Benzodiazepines with no additional Fused Rings:	0
Bicyclic:	0
Diazo Groups:	0
Dihydropyridines:	0
Epoxide Rings:	0
Esters:	0
Ether Oxygens (including phenoxy):	1
Furan Rings:	0
Guanidine Groups:	0
Halogens:	0
Hydrazine Groups:	0
Hydrazone Groups:	0
Imidazole Rings:	0
Imide Groups:	0
Isocyanates:	0
Isothiocyanates:	0
Ketones:	1
Ketones excluding diaryl, a,b-unsat. dienones, heteroatom on Calpha:	0
Beta Lactams:	0
Cyclic Esters (Lactones):	0
Methoxy Groups -OCH3:	1
Morpholine Rings:	0
Nitriles:	1
Nitro Groups:	0
Nitro Benzene Ring Substituents:	0
Non-ortho Nitro Benzene Ring Substituents:	0
Nitroso Groups, excluding NO2:	0
Oxazole Rings:	1
Oxime Groups:	0
Para-hydroxylation Sites:	0
Phenols:	1
Phenolic OH excluding Ortho Intramolecular Hbond substituents:	1
Phosphoric Acid Groups:	0
Phosphoric Ester Groups:	0
Piperdine Rings:	0
Piperzine Rings:	0
Primary Amides:	0
Primary Sulfonamides:	0
Pyridine Rings:	0
Guarternary Nitrogens:	0
Thioethers:	0
Sulfonamides:	0
Sulfone Groups:	0
Terminal Acetylenes:	0
Tetrazole Rings:	0
Thiazole Rings:	0
Thiocyanates:	0
Thiophene Rings:	0
Unbranched Alkanes of at least 4 members (excludes halogenated alkanes):	0
Urea Groups:	0
BCUT2D - Gasteiger Charge Eigenvalue High:	2.19
BCUT2D - Gasteiger Charge Eigenvalue Low:	-2.05
BCUT2D - Crippen Lowgp Eigenvalue High:	2.26
BCUT2D - Crippen Lowgp Eigenvalue Low:	-2.01
BCUT2D - Crippen MR Eigenvalue High:	6.10
BCUT2D - Crippen MR Eigenvalue Low:	0.10
BCUT2D - Mass Eigenvalue High:	16.47
BCUT2D - Mass Eigenvalue Low:	10.05
Balaban’s J:	1.99
Bertz CT:	964.86
Chi 0:	17.27
Chi 0n:	12.85
Chi 0v:	12.85
Chi 1:	11.53
Chi 1n:	6.87
Chi 1v:	6.87
Chi 2n:	4.88
Chi 2v:	4.88
Chi 3v:	3.32
Chi 3v:	3.32
Chi 4n:	2.18
Chi 4v:	2.18
Morgan Fingerprint Density (1):	1.46
Morgan Fingerprint Density (2):	2.25
Morgan Fingerprint Density (3):	2.96
CSP3 Fraction:	0.13
Hall Kier Alpha:	-3.60
Heavy Atoms:	24.00
Ipc descriptor:	393484.66
Kappa 1:	15.30
Kappa 2:	5.89
Kappa 3:	2.59
Labute ASA:	136.09
Max ABS Estate Index:	12.56
Max ABS Partial Charge:	0.51
Max Estate Index:	12.56
Max Partial Charge:	0.26
Minimal ABS Estate Index:	0.07
Minimal ABS Partial Charge:	0.26
Minimal State Index:	-0.44
Minimal Partial Charge:	-0.51
Molar Refractivity:	81.17
Quantitative Estimation of Drug-likeness (QED):	0.73

External Databases

DB
eMolecules (32050068)
PubChem (47062048)
Mcule (MCULE-3157416216)
MolPort (MolPort-009-087-022)
ZINC (ZINC000055149276)

Structure formats:

Smiles

InChI

SDF

EOS95131
     RDKit          3D

24 26  0  0  0  0  0  0  0  0999 V2000
    5.9587   -2.1761   -0.4386 C   0  0  0  0  0  0  0  0  0  0  0  0
    4.5794   -2.0073   -0.1286 O   0  0  0  0  0  0  0  0  0  0  0  0
    4.2991   -0.7156    0.2160 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.2418    0.3109    0.2628 C   0  0  0  0  0  0  0  0  0  0  0  0
    4.8576    1.5992    0.6265 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.5278    1.8574    0.9440 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.1931    3.1378    1.2715 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.5741    0.8422    0.8933 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.1671    1.0865    1.2738 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.9336    1.7694    2.2659 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.1044    0.5146    0.4723 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.1418   -0.1602   -0.7637 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.0652   -0.5200   -1.2036 N   0  0  0  0  0  0  0  0  0  0  0  0
   -1.9022   -0.0701   -0.2497 N   0  0  0  0  0  0  0  0  0  0  0  0
   -3.2663   -0.2684   -0.3731 C   0  0  0  0  0  0  0  0  0  0  0  0
   -4.2044    0.1518    0.5476 O   0  0  0  0  0  0  0  0  0  0  0  0
   -5.4019   -0.2477    0.0313 C   0  0  0  0  0  0  0  0  0  0  0  0
   -6.5975    0.0787    0.8266 C   0  0  0  0  0  0  0  0  0  0  0  0
   -5.3204   -0.8767   -1.1194 N   0  0  0  0  0  0  0  0  0  0  0  0
   -3.9648   -0.8956   -1.3868 C   0  0  0  0  0  0  0  0  0  0  0  0
   -3.4754   -1.5094   -2.5831 C   0  0  0  0  0  0  0  0  0  0  0  0
   -3.1081   -2.0145   -3.5630 N   0  0  0  0  0  0  0  0  0  0  0  0
   -1.2414    0.5605    0.7709 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.9691   -0.4474    0.5365 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0
  2  3  1  0
  3  4  2  0
  4  5  1  0
  5  6  2  0
  6  7  1  0
  6  8  1  0
  8  9  1  0
  9 10  2  0
  9 11  1  0
 11 12  1  0
 12 13  2  0
 13 14  1  0
 14 15  1  0
 15 16  1  0
 16 17  1  0
 17 18  1  0
 17 19  2  0
 19 20  1  0
 20 21  1  0
 21 22  3  0
 14 23  1  0
  8 24  2  0
 24  3  1  0
 23 11  2  0
 20 15  2  0
M  END

$$$$

Similar ECBD compounds (1 entries):

	ECBD ID	Similarity	Structure	SDF
	EOS56607	0.84		EOS56607 RDKit 3D 23 25 0 0 0 0 0 0 0 0999 V2000 -4.8766 -2.4059 0.9762 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.5380 -1.1802 0.2026 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.5398 -0.2734 -0.1380 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.2265 0.8721 -0.8656 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.9097 1.1056 -1.2508 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.6464 2.2521 -1.9401 O 0 0 0 0 0 0 0 0 0 0 0 0 -2.8982 0.2094 -0.9087 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.5022 0.4200 -1.3478 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.2921 0.7913 -2.4975 O 0 0 0 0 0 0 0 0 0 0 0 0 -0.4217 0.1778 -0.4133 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.4452 -0.0939 0.9677 C 0 0 0 0 0 0 0 0 0 0 0 0 0.7694 -0.2427 1.4967 N 0 0 0 0 0 0 0 0 0 0 0 0 1.6035 -0.0489 0.4514 N 0 0 0 0 0 0 0 0 0 0 0 0 2.9681 -0.1328 0.6834 C 0 0 0 0 0 0 0 0 0 0 0 0 3.5570 -0.3932 1.9049 O 0 0 0 0 0 0 0 0 0 0 0 0 4.8971 -0.3798 1.6571 C 0 0 0 0 0 0 0 0 0 0 0 0 5.7754 -0.6333 2.8114 C 0 0 0 0 0 0 0 0 0 0 0 0 5.2215 -0.1398 0.4058 N 0 0 0 0 0 0 0 0 0 0 0 0 4.0025 0.0186 -0.2196 C 0 0 0 0 0 0 0 0 0 0 0 0 3.9377 0.2950 -1.6193 C 0 0 0 0 0 0 0 0 0 0 0 0 3.8608 0.5168 -2.7562 N 0 0 0 0 0 0 0 0 0 0 0 0 0.9248 0.2072 -0.7106 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.2212 -0.9416 -0.1867 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 2 0 3 4 1 0 4 5 2 0 5 6 1 0 5 7 1 0 7 8 1 0 8 9 2 0 8 10 1 0 10 11 1 0 11 12 2 0 12 13 1 0 13 14 1 0 14 15 1 0 15 16 1 0 16 17 1 0 16 18 2 0 18 19 1 0 19 20 1 0 20 21 3 0 13 22 1 0 7 23 2 0 23 2 1 0 22 10 2 0 19 14 2 0 M END $$$$

Similar ZINC compounds (4 entries):

ZINC ID	Similarity	SDF
ZINC55149276	1.0	ZINC55149276 RDKit 3D 24 26 0 0 0 0 0 0 0 0999 V2000 -5.8539 2.4500 0.3606 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.5131 2.0576 0.6350 O 0 0 0 0 0 0 0 0 0 0 0 0 -4.2900 0.7578 0.2792 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.2516 -0.0835 -0.2796 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.9267 -1.3968 -0.6100 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.6375 -1.8663 -0.3792 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.3585 -3.1511 -0.7399 O 0 0 0 0 0 0 0 0 0 0 0 0 -2.6649 -1.0333 0.1711 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.3045 -1.5282 0.4684 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.1775 -2.6376 0.9766 O 0 0 0 0 0 0 0 0 0 0 0 0 -0.1610 -0.6950 0.1568 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.0701 0.5204 -0.5496 C 0 0 0 0 0 0 0 0 0 0 0 0 1.1792 0.9769 -0.6527 N 0 0 0 0 0 0 0 0 0 0 0 0 1.9148 0.0477 -0.0136 N 0 0 0 0 0 0 0 0 0 0 0 0 3.2879 0.1932 0.0804 C 0 0 0 0 0 0 0 0 0 0 0 0 4.1277 -0.6999 0.7138 O 0 0 0 0 0 0 0 0 0 0 0 0 5.3754 -0.1695 0.5655 C 0 0 0 0 0 0 0 0 0 0 0 0 6.4851 -0.9346 1.1587 C 0 0 0 0 0 0 0 0 0 0 0 0 5.4136 0.9657 -0.0951 N 0 0 0 0 0 0 0 0 0 0 0 0 4.0896 1.2064 -0.4091 C 0 0 0 0 0 0 0 0 0 0 0 0 3.7258 2.3782 -1.1453 C 0 0 0 0 0 0 0 0 0 0 0 0 3.4612 3.3379 -1.7447 N 0 0 0 0 0 0 0 0 0 0 0 0 1.1499 -0.9743 0.4827 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.0011 0.2783 0.5074 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 1 0 3 4 2 0 4 5 1 0 5 6 2 0 6 7 1 0 6 8 1 0 8 9 1 0 9 10 2 0 9 11 1 0 11 12 1 0 12 13 2 0 13 14 1 0 14 15 1 0 15 16 1 0 16 17 1 0 17 18 1 0 17 19 2 0 19 20 1 0 20 21 1 0 21 22 3 0 14 23 1 0 8 24 2 0 24 3 1 0 23 11 2 0 20 15 2 0 M END $$$$
ZINC55149278	0.84	ZINC55149278 RDKit 3D 23 25 0 0 0 0 0 0 0 0999 V2000 -4.9673 -2.1569 0.1995 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.5656 -0.7255 0.1245 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.4924 0.2378 -0.2689 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.1193 1.5778 -0.3376 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.8183 1.9492 -0.0114 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.4926 3.2690 -0.1176 O 0 0 0 0 0 0 0 0 0 0 0 0 -2.8804 0.9931 0.3759 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.5066 1.3765 0.7675 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.3448 2.3690 1.4701 O 0 0 0 0 0 0 0 0 0 0 0 0 -0.3898 0.5698 0.3186 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.3349 -0.5059 -0.5889 C 0 0 0 0 0 0 0 0 0 0 0 0 0.8965 -0.9897 -0.7587 N 0 0 0 0 0 0 0 0 0 0 0 0 1.6594 -0.2103 0.0314 N 0 0 0 0 0 0 0 0 0 0 0 0 3.0255 -0.4208 0.1031 C 0 0 0 0 0 0 0 0 0 0 0 0 3.8920 0.3215 0.8791 O 0 0 0 0 0 0 0 0 0 0 0 0 5.1207 -0.2230 0.6467 C 0 0 0 0 0 0 0 0 0 0 0 0 6.2527 0.3904 1.3615 C 0 0 0 0 0 0 0 0 0 0 0 0 5.1226 -1.2331 -0.1938 N 0 0 0 0 0 0 0 0 0 0 0 0 3.7936 -1.3676 -0.5468 C 0 0 0 0 0 0 0 0 0 0 0 0 3.3922 -2.3874 -1.4667 C 0 0 0 0 0 0 0 0 0 0 0 0 3.0944 -3.2254 -2.2147 N 0 0 0 0 0 0 0 0 0 0 0 0 0.9269 0.7387 0.6937 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.2646 -0.3473 0.4515 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 2 0 3 4 1 0 4 5 2 0 5 6 1 0 5 7 1 0 7 8 1 0 8 9 2 0 8 10 1 0 10 11 1 0 11 12 2 0 12 13 1 0 13 14 1 0 14 15 1 0 15 16 1 0 16 17 1 0 16 18 2 0 18 19 1 0 19 20 1 0 20 21 3 0 13 22 1 0 7 23 2 0 23 2 1 0 22 10 2 0 19 14 2 0 M END $$$$
ZINC55149269	0.83	ZINC55149269 RDKit 3D 23 25 0 0 0 0 0 0 0 0999 V2000 -6.0227 1.5213 1.6668 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.9916 0.5278 1.3225 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.0984 -0.7790 1.2357 N 0 0 0 0 0 0 0 0 0 0 0 0 -3.8273 -1.1886 0.8815 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.5454 -2.5781 0.6891 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.3444 -3.7127 0.5390 N 0 0 0 0 0 0 0 0 0 0 0 0 -2.9861 -0.0986 0.7656 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.6433 -0.0674 0.4318 N 0 0 0 0 0 0 0 0 0 0 0 0 -0.8369 1.0347 0.3241 C 0 0 0 0 0 0 0 0 0 0 0 0 0.4197 0.5854 -0.0245 C 0 0 0 0 0 0 0 0 0 0 0 0 1.5786 1.4195 -0.2655 C 0 0 0 0 0 0 0 0 0 0 0 0 1.5086 2.6440 -0.2723 O 0 0 0 0 0 0 0 0 0 0 0 0 2.8905 0.7838 -0.5053 C 0 0 0 0 0 0 0 0 0 0 0 0 3.3172 -0.2373 0.3434 C 0 0 0 0 0 0 0 0 0 0 0 0 4.5738 -0.8037 0.1544 C 0 0 0 0 0 0 0 0 0 0 0 0 4.9780 -1.7881 0.9671 F 0 0 0 0 0 0 0 0 0 0 0 0 5.4166 -0.3646 -0.8616 C 0 0 0 0 0 0 0 0 0 0 0 0 4.9939 0.6596 -1.7041 C 0 0 0 0 0 0 0 0 0 0 0 0 3.7377 1.2318 -1.5196 C 0 0 0 0 0 0 0 0 0 0 0 0 3.3587 2.2173 -2.3822 O 0 0 0 0 0 0 0 0 0 0 0 0 0.2549 -0.8106 -0.1123 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.9851 -1.2126 0.1693 N 0 0 0 0 0 0 0 0 0 0 0 0 -3.7468 1.0161 1.0533 O 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 2 0 3 4 1 0 4 5 1 0 5 6 3 0 4 7 2 0 7 8 1 0 8 9 1 0 9 10 2 0 10 11 1 0 11 12 2 0 11 13 1 0 13 14 2 0 14 15 1 0 15 16 1 0 15 17 2 0 17 18 1 0 18 19 2 0 19 20 1 0 10 21 1 0 21 22 2 0 7 23 1 0 23 2 1 0 22 8 1 0 19 13 1 0 M END $$$$
ZINC58163035	0.83	ZINC58163035 RDKit 3D 23 25 0 0 0 0 0 0 0 0999 V2000 -6.2089 -1.2463 0.8758 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.1275 -0.3660 0.4023 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.2083 0.8411 -0.1106 N 0 0 0 0 0 0 0 0 0 0 0 0 -3.8931 1.1755 -0.3698 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.5725 2.4453 -0.9461 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.3406 3.4829 -1.4149 N 0 0 0 0 0 0 0 0 0 0 0 0 -3.0528 0.1436 0.0016 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.6736 0.0696 -0.0872 N 0 0 0 0 0 0 0 0 0 0 0 0 -0.8690 -0.9730 0.2897 C 0 0 0 0 0 0 0 0 0 0 0 0 0.4314 -0.5997 0.0211 C 0 0 0 0 0 0 0 0 0 0 0 0 1.6077 -1.4142 0.2445 C 0 0 0 0 0 0 0 0 0 0 0 0 1.5303 -2.5810 0.6142 O 0 0 0 0 0 0 0 0 0 0 0 0 2.9460 -0.8266 0.0293 C 0 0 0 0 0 0 0 0 0 0 0 0 3.2317 0.4298 0.5636 C 0 0 0 0 0 0 0 0 0 0 0 0 4.5049 0.9707 0.4115 C 0 0 0 0 0 0 0 0 0 0 0 0 4.8465 2.5189 1.0632 Cl 0 0 0 0 0 0 0 0 0 0 0 0 5.5015 0.2699 -0.2610 C 0 0 0 0 0 0 0 0 0 0 0 0 5.2212 -0.9876 -0.7886 C 0 0 0 0 0 0 0 0 0 0 0 0 3.9485 -1.5315 -0.6370 C 0 0 0 0 0 0 0 0 0 0 0 0 3.7140 -2.7562 -1.1884 O 0 0 0 0 0 0 0 0 0 0 0 0 0.2941 0.6892 -0.5298 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.9722 1.1029 -0.5912 N 0 0 0 0 0 0 0 0 0 0 0 0 -3.8592 -0.8574 0.5034 O 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 2 0 3 4 1 0 4 5 1 0 5 6 3 0 4 7 2 0 7 8 1 0 8 9 1 0 9 10 2 0 10 11 1 0 11 12 2 0 11 13 1 0 13 14 2 0 14 15 1 0 15 16 1 0 15 17 2 0 17 18 1 0 18 19 2 0 19 20 1 0 10 21 1 0 21 22 2 0 7 23 1 0 23 2 1 0 22 8 1 0 19 13 1 0 M END $$$$

Assays:

Name	Assay stage	Target	Activity
GPR35 antagonism	primary assay	G-protein coupled receptor 35	inactive

Sections: