Skype
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  1  2  3  4  5  *
CHEMICAL products beginning with : D
30051 to 30100 of 51583 results  Page: << Previous 50 Results 600 601 [602] 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 >> Next 50 Results
 PRODUCT NAMECAS Registry Number 
DIGITAL PERISTALTIC PUMP 30-100RPM -110V (1 supplier)
DIGITAL PERISTALTIC PUMP 30-100RPM -230V (1 supplier)
DIGITAL PERISTALTIC PUMP 5-600RPM / 1 RPM INCRE. 100W - 110/220V (1 supplier)
DIGITAL POCKET ANEMOMETER (1 supplier)
DIGITAL POCKET THERMOMETER (1 supplier)
DIGITAL QUICK RESPONSE POCKET THERMOMETER (1 supplier)
DIGITAL ROUND ELECTRIC JACKET (1 supplier)
DIGITAL SPECTROMETER LD WITH ABSORPTION CHAMBER (1 supplier)
DIGITAL STOPWATCH (1 supplier)
DIGITAL STROBOSCOPE (230 V, 50/60 HZ) (1 supplier)
DIGITAL SYRINGE BOX (1 supplier)
DIGITAL THERMOMETER, 1 CHANNEL (1 supplier)
DIGITAL THERMOMETER, 2 CHANNELS (1 supplier)
DIGITAL THERMOMETER, MIN/MAX (1 supplier)
DIGITAL THERMOSTIRRER COMPLETE WITH 14 LITRE STAINLESS STEEL TANK AND SHELF (SENSITIVITY +/-0.1°C) PID DIGITAL, LED DISPLAY, RESOLUTION 0.1°C AMBIENT +5°C - 99°C, 230V, 1250W EXTERNAL DIMENSION: 361W X 332D X 170H MM INTERNAL DIMENSION: 219W X298D X150H MM (SPECIAL TR (1 supplier)
DIGITAL ULTRASONIC CLEANER (1 supplier)
DIGITAL-SPECTROMETER HD (1 supplier)
DIGITAL-SPECTROMETER LD (1 supplier)
DIGITALE OSCILLOSCOPE, 2X100MHZ (1 supplier)
DIGITALE OSCILLOSCOPE, 2X25MHZ (1 supplier)
DIGITALE OSCILLOSCOPE, 2X40MHZ (1 supplier)
DIGITALIN (4 suppliers)
Compound Structure IUPAC Name: 3-[(3S,5R,8R,9S,10S,13R,14S,16S,17R)-14,16-dihydroxy-3-[(2R,3R,4R,5S,6R)-3-hydroxy-4-methoxy-6-methyl-5-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2H-furan-5-one | CAS Registry Number: 752-61-4
Synonyms: Glucostrospeside, CHEBI:28143, Gitoxigenin 3-O-glucosyldigitaloside, CID441856, LMST01120015, C08862, Digitalin; Gitoxigenin 3-O-glucosyldigitaloside; Glucostrospeside, 3beta-(6-deoxy-4-O-beta-D-glucopyranosyl-3-O-methyl-beta-D-galactopyranosyloxy)-14,16beta-dihydroxy-5beta-card-20(22)-enolide

Molecular Formula: C36H56O14Molecular Weight: 712.821440 [g/mol]
H-Bond Donor: 7H-Bond Acceptor: 14

InChIKey: CKNOLMVLQUPVMU-YMMLYESFSA-N

752-61-4
Digitaline (1 supplier)
DIGITALIS (6 suppliers)
Compound Structure IUPAC Name: 3-[(3S,5R,8R,9S,10S,13R,14S,17S)-3-[(2R,4S,5S,6R)-5-[(2S,4S,5S,6R)-5-[(2S,4S,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy-4-hydroxy-6-methyloxan-2-yl]oxy-4-hydroxy-6-methyloxan-2-yl]oxy-14-hydroxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2H-furan-5-one | CAS Registry Number: 1339-93-1
Synonyms: digitoxin, Digitophyllin, Digitoxoside, Digitoxosidum, Asthenthilo, Cardidigin, Carditalin, Carditoxin, Cristapurat, Crystodigin, Digitoksim, Digitoksin, Digitoxinum, Glucodigin, Acedoxin, Cardigin, Coramedan, Digilong, Digimerck, Digipural

Molecular Formula: C41H64O13Molecular Weight: 764.939060 [g/mol]
H-Bond Donor: 5H-Bond Acceptor: 13

InChIKey: WDJUZGPOPHTGOT-ADSZZZNASA-N

1339-93-1
Digitalis (3 g) (4 suppliers)8031-42-3
DIGITALIS LANATA LEAF PLANT EXTRACT (1 supplier)
DIGITALIS LANATOSIDE STANDARDS KIT (1 supplier)
DIGITALIS LEAF PLANT EXTRACT (1 supplier)
Digitalis Purpurea (1 supplier)
DIGITAN (1 supplier)8001-19-2
DIGITARIA ISCHAEMUM EXTRACT (1 supplier)
DIGITIN (1 supplier)
Compound Structure Synonyms: Digitonin, Digitonine, Digitin, Digitogenin, glycoside, EINECS 234-255-6, CHEBI:182306, NSC 23471, CID25444, BRN 0078654, LS-523, AI3-44893, 5-19-03-00603 (Beilstein Handbook Reference), 11024-24-1, beta-D-Galactopyranoside, (2alpha,3beta,5alpha,15beta,25R)-2,15-dihydroxyspirostan-3-yl O-beta-D-glucopyranosyl-(1-3)-O-beta-D-galactopyranosyl-(1-2)-O-(beta-D-xylopyranosyl-(1-3))-O-beta-D-glucopyranosyl-(1-4)-, 35-62-1, beta-D-Galactopyranoside, (2alpha,3beta,5alpha,15beta,25R)-2,15-dihydroxyspirostan-3-yl O-beta-D-glucopyranosyl-(1->3)-O-beta-D-galactopyranosyl-(1->2)-O-(beta-D-xylopyranosyl-(1->3))-O-beta-D-glucopyranosyl-(1->4)-, beta-D-Galactopyranoside, (2alpha,3beta,5alpha,15beta,25R)-2,15-dihydroxyspirostan-3-yl O-beta-D-glucopyranosyl-(1.fwdarw.3)-O-beta-D-galactopyranosyl-(1.fwdarw.2)-O-(beta-D-xylopyranosyl-(1.fwdarw.3))-O-beta-D-glucopyranosyl-(1.fwdarw.4)-

Molecular Formula: C56H92O29Molecular Weight: 1229.312280 [g/mol]
H-Bond Donor: 17H-Bond Acceptor: 29

InChIKey: UVYVLBIGDKGWPX-YCCXZQINSA-N

52781-76-7
DIGITOGENIN (4 suppliers)
Compound Structure Synonyms: Digitogenin, CHEBI:28431, CID441886, LMST01080004, C08896, (25R)-5alpha-spirostan-2alpha,3beta,15beta-triol

Molecular Formula: C27H44O5Molecular Weight: 448.635260 [g/mol]
H-Bond Donor: 3H-Bond Acceptor: 5

InChIKey: COVOPPXLDJVUSC-JPYPKGSXSA-N

511-34-2
DIGITOLUTEIN (8 suppliers)
Compound Structure IUPAC Name: 2-hydroxy-1-methoxy-3-methylanthracene-9,10-dione | CAS Registry Number: 477-86-1
Synonyms: Digitolutein, CID160475, 9,10-Anthracenedione, 2,8-dihydroxy-1-methoxy-3-methyl-

Molecular Formula: C16H12O4Molecular Weight: 268.264080 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 4

InChIKey: WCRMDMYSQWZTSF-UHFFFAOYSA-N

477-86-1
Digitonin (17 suppliers)
Compound Structure Synonyms: Digitin, CHEBI:27729, NCGC00091824-01, (25R)-2alpha,15beta-dihydroxy-5alpha-spirostan-3beta-yl beta-D-glucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->2)-[beta-D-xylopyranosyl-(1->3)]-beta-D-glucopyranosyl-(1->4)-beta-D-galactopyranoside, beta-D-Galactopyranoside, (2alpha,3beta,5alpha,15beta,25R)-2,15-dihydroxyspirostan-3-yl O-beta-D-glucopyranosyl-(1-3)-O-beta-D-galactopyranosyl-(1-2)-O-(beta-D-xylopyranosyl-(1-3))-O-beta-D-glucopyranosyl-(1-4)-

Molecular Formula: C56H92O29Molecular Weight: 1229.312280 [g/mol]
H-Bond Donor: 17H-Bond Acceptor: 29

InChIKey: UVYVLBIGDKGWPX-XJVHMSFUSA-N

11024-24-1
Digitoxigenin (14 suppliers)
Compound Structure IUPAC Name: 3-[(3S,5R,8R,9S,10S,13R,14S,17R)-3,14-dihydroxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2H-furan-5-one | CAS Registry Number: 143-62-4
Synonyms: Cerberigenin, Evonogenin, Thevetigenin, Echujetin, 1lnm, Prestwick_169, Prestwick0_000436, Prestwick1_000436, Prestwick2_000436, Prestwick3_000436, BSPBio_000452, nchembio.2007.53-comp9, MLS002153810, D9404_SIGMA, SPBio_002391, BPBio1_000498, STOCK1N-24175, CHEBI:42219, LMST01120001, NCGC00179555-01

Molecular Formula: C23H34O4Molecular Weight: 374.513660 [g/mol]
H-Bond Donor: 2H-Bond Acceptor: 4

InChIKey: XZTUSOXSLKTKJQ-CESUGQOBSA-N

143-62-4
DIGITOXIGENIN (THEVETIGENIN; ECHUJETIN; CERBERIGENIN) (1 supplier)
DIGITOXIGENIN 3-ACETATE (4 suppliers)
Compound Structure IUPAC Name: [(3S,5R,10S,13R,14S,17R)-14-hydroxy-10,13-dimethyl-17-(5-oxo-2H-furan-3-yl)-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl] acetate | CAS Registry Number: 808-19-5
Synonyms: Digitoxigenin acetate, 3-Acetyldigitoxigenin, Digitoxigenin-3-acetate, 3-O-Acetyldigitoxigenin, EINECS 212-363-4, CHEBI:351671, CID13125, BRN 0097888, LS-52422, 4-18-00-01472 (Beilstein Handbook Reference), 3-beta-Acetoxy-14-hydroxy-5-beta,14-beta-card-20(22)-enolide, Card-20(22)-enolide, 3-(acetyloxy)-14-hydroxy-, (3-beta,5-beta)-, 5-beta-CARD-20(22)-ENOLIDE, 3-beta,14-DIHYDROXY-, 3-ACETATE, Acetic acid 14-hydroxy-10,13-dimethyl-17-(5-oxo-2,5-dihydro-furan-3-yl)-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester

Molecular Formula: C25H36O5Molecular Weight: 416.550340 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 5

InChIKey: WJOGTCZNZPHODB-QWTCUPQZSA-N

808-19-5
DIGITOXIGENIN ARABINOSIDE (2 suppliers)
Compound Structure IUPAC Name: 3-[(3S,5R,8R,9S,10S,13R,17R)-3-[(2R,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-14-hydroxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2H-furan-5-one | CAS Registry Number: 78614-49-0
Synonyms: Digitoxigenin arabinoside, CID196110, Digitoxigenin-3beta-O-alpha-L-arabinofuranoside, Card-20(22)-enolide, 3-(alpha-L-arabinofuranosyloxy)-14-hydroxy-, (3beta,5beta)-

Molecular Formula: C28H42O8Molecular Weight: 506.628280 [g/mol]
H-Bond Donor: 4H-Bond Acceptor: 8

InChIKey: VFQLNJQAASSPQR-IOPHKGALSA-N

78614-49-0
DIGITOXIGENIN-21,23,23-D3 (1 supplier)
DIGITOXIGENIN-3-BROMOACETATE (2 suppliers)
Compound Structure IUPAC Name: [(3S,5R,8R,9S,10S,13R,17R)-14-hydroxy-10,13-dimethyl-17-(5-oxo-2H-furan-3-yl)-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl] 2-bromoacetate | CAS Registry Number: 31702-65-5
Synonyms: Digitoxigenin-3-bromoacetate, CID169352, Card-20(22)enolide, 3-((bromoacetyl)oxy)-14-hydroxy-, (3beta,5beta)-

Molecular Formula: C25H35BrO5Molecular Weight: 495.446400 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 5

InChIKey: NINRIIHMWQEVEA-NHODDBOBSA-N

31702-65-5
DIGITOXIGENIN-3-TOSYLOXYACETATE (2 suppliers)
Compound Structure IUPAC Name: [(3S,5S,8R,9S,10S,13R,17R)-14-hydroxy-10,13-dimethyl-17-(5-oxo-2H-furan-3-yl)-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl] 2-(4-methylphenyl)sulfonyloxyacetate | CAS Registry Number: 78730-58-2
Synonyms: DTOAT, Digitoxigenin-3-tosyloxyacetate, CID196113, Card-20(22)-enolide, 14-hydroxy-3-(((((4-methylphenyl)sulfonyl)oxy)acetyl)oxy)-, (3beta,5alpha)-

Molecular Formula: C32H42O8SMolecular Weight: 586.736080 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 8

InChIKey: CRVMLCAWYRGXHJ-QIROOBSUSA-N

78730-58-2
DIGITOXIGENIN-BISDIGITOXOSID (5 suppliers)
Compound Structure IUPAC Name: 3-[(3S,5R,10S,13R,14S,17R)-3-[(2R,4S,5S,6R)-5-[(2S,4S,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy-4-hydroxy-6-methyloxan-2-yl]oxy-14-hydroxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2H-furan-5-one | CAS Registry Number: 16479-50-8
Synonyms: Digitoxin digitoxoside, Digitoxigenin bisdigitoxide, Digitoxigenin bisdigitoxoside, Digitoxigenin di(digitoxoside), Digitoxigenine bis-digitoxoside, Digitoxigenin-bis(digitoxoside), Digitoxigenin 3-O-bisdigitoxoside, EINECS 240-533-8, CHEBI:282421, CID27886, BRN 0101942, LS-52370, 4-18-00-01478 (Beilstein Handbook Reference), 5-beta-Card-20(22)-enolide, 3-beta,14-dihydroxy-, didigitoxoside, 3beta-((2,6-Dideoxy-4-O-(2,6-dideoxy-beta-D -ribo-hexopyranosyl)-beta-D -ribo-hexopyranosyl)oxy)-14-hydroxy-5beta-card-20(22)-enolide, 5-beta-Card-20(22)-enolide, 3-beta-((O-2,6-dideoxy-beta-D-ribo-hexopyranosyl-(1-4)-O-2,6-dideoxy-beta-D-ribo-hexopyranosyl-(1-4))oxy)-14-hydroxy-, 4-{(3S,5R,10S,13R,14S,17R)-3-[(2R,4S,5S,6R)-5-((2S,4S,5S,6R)-4,5-Dihydroxy-6-methyl-tetrahydro-pyran-2-yloxy)-4-hydroxy-6-methyl-tetrahydro-pyran-2-yloxy]-14-hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl}-5H-furan-2-one

Molecular Formula: C35H54O10Molecular Weight: 634.797260 [g/mol]
H-Bond Donor: 4H-Bond Acceptor: 10

InChIKey: CERUVRSAHAFOLZ-LAWPZHMJSA-N

16479-50-8
DIGITOXIGENIN-GALACTOSE (2 suppliers)
Compound Structure IUPAC Name: 3-[(3S,5R,8R,9S,10S,13R,17R)-14-hydroxy-10,13-dimethyl-3-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2H-furan-5-one | CAS Registry Number: 33275-60-4
Synonyms: Glucodigitoxigenin, Digitoxigenin-galactose, Digitoxigenin-beta-D-galactose, CID3082373, Card-20(22)-enolide, 3-(beta-D-galactopyranosyloxy)-14-hydroxy-, (3beta,5beta)-

Molecular Formula: C29H44O9Molecular Weight: 536.654260 [g/mol]
H-Bond Donor: 5H-Bond Acceptor: 9

InChIKey: CMHWMOGWFZWDMR-GCRVBMKPSA-N

33275-60-4
DIGITOXIGENIN-MON-DIGITOXOSIDE (1 supplier)
Digitoxin (15 suppliers)
Compound Structure IUPAC Name: 3-[(3S,5R,8R,9S,10S,13R,14S,17R)-3-[(2R,4S,5S,6R)-5-[(2S,4S,5S,6R)-5-[(2S,4S,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy-4-hydroxy-6-methyloxan-2-yl]oxy-4-hydroxy-6-methyloxan-2-yl]oxy-14-hydroxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2H-furan-5-one | CAS Registry Number: 71-63-6
Synonyms: digitoxin, Digitoxoside, Crystodigin, Digitoksin, Digitoxinum, Cardigin, Crystodigin (TN), DIGITALIN, MLS000069787, D5878_SIGMA, Digitoxin (JP15/USP/INN), MEGxp0_001901, ACon0_000319, ACon1_000610, CHEBI:28544, CID441207, DB01396, SMP1_000096, NCGC00142623-03, SMR000058529

Molecular Formula: C41H64O13Molecular Weight: 764.939060 [g/mol]
H-Bond Donor: 5H-Bond Acceptor: 13

InChIKey: WDJUZGPOPHTGOT-XUDUSOBPSA-N

71-63-6
Digitoxin, tetraacetate (1 supplier)
Compound Structure IUPAC Name: [(2R,3R,4S,6S)-3-[(2R,4S,5R,6R)-4-acetyloxy-5-[(2R,4S,5R,6R)-4,5-diacetyloxy-6-methyloxan-2-yl]oxy-6-methyloxan-2-yl]oxy-6-[[(3S,5R,8R,9S,10S,13R,17R)-14-hydroxy-10,13-dimethyl-17-(5-oxo-2H-furan-3-yl)-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl]oxy]-2-methyloxan-4-yl] acetate | CAS Registry Number: 13238-31-8
Synonyms: Tetraacetyldigitoxin, BRN 0078324, AC1L494R, LS-61957, 4-18-00-01480 (Beilstein Handbook Reference), [(2R,3R,4S,6S)-3-[(2R,4S,5R,6R)-4-acetyloxy-5-[(2R,4S,5R,6R)-4,5-diacetyloxy-6-methyloxan-2-yl]oxy-6-methyloxan-2-yl]oxy-6-[[(3S,5R,8R,9S,10S,13R,17R)-14-hydroxy-10,13-dimethyl-17-(5-oxo-2H-furan-3-yl)-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl]oxy]-2-methyloxan-4-yl] acetate

Molecular Formula: C49H72O17Molecular Weight: 933.085780 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 17

InChIKey: XUTZHKBFRMSIQE-REFIZGJZSA-N

13238-31-8
DIGITOXIN,DIACETATE (2 suppliers)
Compound Structure IUPAC Name: [(2R,3R,4S,6S)-6-[(2R,3S,4S,6S)-6-[(2R,4S,6R)-6-[[(3S,5R,8R,9S,10S,13R,14S,17R)-16-acetyl-14-hydroxy-10,13-dimethyl-17-(5-oxo-2H-furan-3-yl)-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl]oxy]-4-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2-methyloxan-3-yl]oxy-3-hydroxy-2-methyloxan-4-yl] acetate | CAS Registry Number: 1289-56-1
Synonyms: Diacetyldigitoxin, Digitoxin, diacetate, CID200236, LS-61953

Molecular Formula: C45H68O15Molecular Weight: 849.012420 [g/mol]
H-Bond Donor: 4H-Bond Acceptor: 15

InChIKey: BPIANJVPDGVPEM-AFDJNSRISA-N

1289-56-1
DIGITOXIN-16'-GLUCURONIDE (2 suppliers)
Compound Structure IUPAC Name: (2S,3S,4S,5R,6R)-3,4,5-trihydroxy-6-[(2R,3S,4S,6S)-4-hydroxy-6-[(2R,3S,4S,6S)-4-hydroxy-6-[(2R,4S,6R)-4-hydroxy-6-[[(3S,5R,8R,9S,10S,13R,14S,17R)-14-hydroxy-10,13-dimethyl-17-(5-oxo-2H-furan-3-yl)-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-yl]oxy]-2-methyloxan-3-yl]oxy-2-methyloxan-3-yl]oxy-2-methyloxan-3-yl]oxyoxane-2-carboxylic acid | CAS Registry Number: 68325-34-8
Synonyms: DT-Glu, Digitoxin-16'-glucuronide, CID3034842, Card-20(22)-enolide, 3-((O-beta-D-glucopyranuronosyl-(1-4)-O-2,6-dideoxy-beta-D-ribo-hexopyranosyl-(1-4)-O-2,6-dideoxy-beta-D-ribo-hexopyranosyl-(1-4)-2,6-dideoxy-beta-D-ribo-hexopyranosyl)oxy)-14-hydroxy-, (3beta,5beta)-

Molecular Formula: C47H72O19Molecular Weight: 941.063180 [g/mol]
H-Bond Donor: 8H-Bond Acceptor: 19

InChIKey: DBYXZCXUSIFREJ-LMCJYOGESA-N

68325-34-8
DIGITOXIN-21,23,23-D3 (1 supplier)
30051 to 30100 of 51583 results  Page: << Previous 50 Results 600 601 [602] 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 >> Next 50 Results
Alphabetical Products   |   ALL 20,000 Suppliers
HomeBuyAdd FREE ListingAdvertise Chemical Company