Compostos de Fósforo (P)
Nesta seção, você encontrará uma ampla variedade de moléculas inorgânicas que contêm um ou mais átomos de fósforo em sua estrutura. Esses compostos variam de moléculas de fósforo muito simples a moléculas complexas com múltiplos grupos funcionais. Os compostos de fósforo são amplamente utilizados em várias aplicações, incluindo fertilizantes, retardadores de chama e produtos farmacêuticos. Na CymitQuimica, oferecemos uma seleção abrangente de compostos de fósforo de alta qualidade para apoiar suas necessidades de pesquisa e industriais, garantindo desempenho confiável e consistente em suas aplicações.
Foram encontrados 2593 produtos de "Compostos de Fósforo (P)"
Ordenar por
Pureza (%)
0
100
|
0
|
50
|
90
|
95
|
100
(S)-(+)-1,13-Bis(diphenylphosphino)-7,8-dihydro-6H-dibenzo[f,h][1,5]dioxonin, 95% (S)-C₃-TUNEPHOS
CAS:<p>(S)-(+)-1,13-Bis(diphenylphosphino)-7,8-dihydro-6H-dibenzo[f,h][1,5]dioxonin, 95% (S)-C3-TUNEPHOS</p>Fórmula:C39H32O2P2Pureza:95%Cor e Forma:white pwdr.Peso molecular:594.62Cyclohexyldi-t-butylphosphine, 97%
CAS:<p>Cyclohexyldi-t-butylphosphine, 97%</p>Fórmula:(CH3)3C(C6H11)PPureza:97%Cor e Forma:colorless liq.Peso molecular:228.362,4,6-Trioxa-1,3,5,7-tetramethyl-8-phosphaadamantane (~30% in xylene)
CAS:<p>2,4,6-Trioxa-1,3,5,7-tetramethyl-8-phosphaadamantane (~32% in xylene)</p>Fórmula:C10H17O3PCor e Forma:colorless to pale yellow liq.Peso molecular:216.21(+)-1,2-Bis((2R,5R)-2,5-di-i-propylphospholano)benzene, 98+% (R,R)-i-Pr-DUPHOS
CAS:<p>(+)-1,2-Bis((2R,5R)-2,5-di-i-propylphospholano)benzene, 98+% (R,R)-i-Pr-DUPHOS</p>Fórmula:C26H44P2Pureza:98+%Cor e Forma:white xtl.Peso molecular:418.582-(t-Butylphenylphosphino)-2',6'-dimethylamino-1,1'-biphenyl, 98% (t-Bu)PhCPhos
CAS:<p>2-(t-Butylphenylphosphino)-2',6'-dimethylamino-1,1'-biphenyl, 98% (t-Bu)PhCPhos</p>Fórmula:C26H33N2PPureza:98%Cor e Forma:white to off-white pwdr.Peso molecular:404.53Tri-i-propylphosphine, 98% (10 wt% in hexanes)
CAS:<p>Tri-i-propylphosphine, 98% (10 wt% in hexanes)</p>Fórmula:(iC3H7)3PPureza:98%Cor e Forma:colorless liq.Peso molecular:160.24Tricyclopentylphosphine, min. 95% (10wt% in hexanes)
CAS:<p>Tricyclopentylphosphine, min. 95% (10wt% in hexanes)</p>Fórmula:(C5H9)3PPureza:min. 95%Cor e Forma:colorless liq.Peso molecular:238.35(S)-(+)-(3,5-Dioxa-4-phospha-cyclohepta[2,1-a;3,4-a']dinaphthalen-4-yl)diethylamine, min. 97%
CAS:<p>(S)-(+)-(3,5-Dioxa-4-phospha-cyclohepta[2,1-a;3,4-a']dinaphthalen-4-yl)diethylamine, min. 97%</p>Fórmula:C24H22NO2PPureza:min. 97%Cor e Forma:white pwdr.Peso molecular:387.41Di-i-propylphosphine, 98% (10 wt% in hexanes)
CAS:<p>Di-i-propylphosphine, 98% (10 wt% in hexanes)</p>Fórmula:(C3H7)2PHPureza:98%Cor e Forma:colorless liqPeso molecular:118.16(11bR)-2,6-Di-1-pyrenyl-4-hydroxy-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, 98%, (99% ee)
<p>(11bR)-2,6-Di-1-pyrenyl-4-hydroxy-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, 98%, (99% ee)</p>Fórmula:C52H31O4PPureza:98%, (99% ee)Cor e Forma:white to yellow pwdr.Peso molecular:748.80[1-(2R,5R)-2,5-Diethylphospholanyl]-[2-(2R,5R)-2,5-diethylphospholanyl-1-oxide]benzene, min. 97%
CAS:<p>[1-(2R,5R)-2,5-Diethylphospholanyl]-[2-(2R,5R)-2,5-diethylphospholanyl-1-oxide]benzene, min. 97%</p>Fórmula:C22H36OP2Pureza:min. 97%Cor e Forma:white solidPeso molecular:378.472-((2R,3R)-3-(tert-Butyl)-4-(2,6-dimethoxyphenyl)-2,3-dihydrobenzo[d][1,3]oxaphosphol-2-yl)-6-methoxypyridine, 97% (>99% ee)
Fórmula:C25H28NO4PPureza:97% (>99% ee)Cor e Forma:white to off-white solidPeso molecular:437.47(2S,4S)-(-)-2,4-Bis(diphenylphosphino)pentane, 99% (S,S)-BDPP
CAS:<p>(2S,4S)-(-)-2,4-Bis(diphenylphosphino)pentane, 99% (S,S)-BDPP</p>Fórmula:(C6H5)2PCH(CH3)CH2CH(CH3)P(C6H5)2Pureza:99%Cor e Forma:white xtl.Peso molecular:440.49Triethylphosphonium tetrafluoroborate, 99%
<p>Triethylphosphonium tetrafluoroborate, 99%</p>Fórmula:(C2H5)3PHBF4Pureza:99%Cor e Forma:white pwdr.Peso molecular:205.971,3-Bis(di-t-butylphosphinomethyl)benzene, 99%
CAS:<p>1,3-Bis(di-t-butylphosphinomethyl)benzene, 99%</p>Fórmula:C6H4CH2P(C4H9)2Pureza:99%Cor e Forma:white pwdr.Peso molecular:394.56(R)-(-)-(3,5-Dioxa-4-phospha-cyclohepta[2,1-a;3,4-a']dinaphthalen-4-yl)dimethylamine, min. 97% (R)-MONOPHOS
CAS:<p>(R)-(-)-(3,5-Dioxa-4-phospha-cyclohepta[2,1-a;3,4-a']dinaphthalen-4-yl)dimethylamine, min. 97% (R)-MONOPHOS</p>Fórmula:C22H18NO2PPureza:min. 97%Cor e Forma:white xtl.Peso molecular:359.36Tri-i-propylphosphite, min. 94%
CAS:<p>Tri-i-propylphosphite, min. 94%</p>Fórmula:(CH3)2CHOPPureza:min. 94%Cor e Forma:colorless liq.Peso molecular:208.24Tris[2-(diphenylphosphino)ethyl]phosphine, 98% PP₃
CAS:<p>Tris[2-(diphenylphosphino)ethyl]phosphine, 98% PP3</p>Fórmula:C42H42P4Pureza:98%Cor e Forma:white pwdr.Peso molecular:670.682,2'-Bis(diphenylphosphinomethyl)-1,1'-biphenyl, 99% BISBI
CAS:<p>2,2'-Bis(diphenylphosphinomethyl)-1,1'-biphenyl, 99% BISBI</p>Fórmula:C38H32P2Pureza:99%Cor e Forma:white solidPeso molecular:550.61(S)-3-(tert-Butyl)-4-(3,5-diisopropyl-2,6-dimethoxyphenyl)-2,3-dihydrobenzo[d][1,3]oxaphosphole, 97% (>99% ee)
Fórmula:C25H35O3PPureza:97% (>99% ee)Cor e Forma:white to off-white solidPeso molecular:414.231,8-Bis(diphenylphosphino)octane, 99%
CAS:<p>1,8-Bis(diphenylphosphino)octane, 99%</p>Fórmula:C32H36P2Pureza:99%Cor e Forma:white pwdr.Peso molecular:482.582-(Diphenylphosphino)benzaldehyde, min. 97%
CAS:<p>2-(Diphenylphosphino)benzaldehyde, min. 97%</p>Fórmula:(C6H5)2P(C6H5COH)Pureza:min. 97%Cor e Forma:white to yellow pwdr.Peso molecular:290.301,2,2,3,4,4 Hexamethylphosphetane 1-oxide
CAS:Fórmula:C9H19OPCor e Forma:White solidPeso molecular:174.22Tri-n-butylphosphonium tetrafluoroborate, 99%
CAS:<p>Tri-n-butylphosphonium tetrafluoroborate, 99%</p>Fórmula:(C4H9)3PHBF4Pureza:99%Cor e Forma:white pwdr.Peso molecular:290.13(2S,3S)-3-(tert-Butyl)-4-(2,6-diphenoxyphenyl)-2-methyl-2,3-dihydrobenzo[d][1,3]oxaphosphole, 97% (>99% ee)
Fórmula:C30H29O3PPureza:97% (>99% ee)Cor e Forma:white to off-white solidPeso molecular:468.18(11bS)-2,6-Bis[3,5-bis(1,1-dimethylethyl)phenyl]-4-hydroxy-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, 98%
CAS:Fórmula:C48H53O4PPureza:98%Cor e Forma:white to light yellow pwdr.Peso molecular:724.90(11bS)-4-Hydroxy-2,6-bis(4-methoxyphenyl)-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, 98%, (99% ee)
CAS:<p>(11bS)-4-Hydroxy-2,6-bis(4-methoxyphenyl)-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, 98%, (99% ee)</p>Fórmula:C34H25O6PPureza:98%, (99% ee)Cor e Forma:white to yellow pwdr.Peso molecular:560.50[2-(N,N-Dimethylamino)phenyl]di-t-butylphosphine, min. 95%
CAS:<p>[2-(N,N-Dimethylamino)phenyl]di-t-butylphosphine, min. 95%</p>Fórmula:C16H28NPPureza:min. 95%Cor e Forma:white to light-brown xtl.Peso molecular:265.37(S)-2,2'-Bis(diphenylphosphino)-4,4',6,6'-tetramethoxy)-1,1'-biphenyl, min. 97% (S)-Ph-Garphos™
CAS:<p>(S)-2,2'-Bis(diphenylphosphino)-4,4',6,6'-tetramethoxy)-1,1'-biphenyl, min. 97% (S)-Ph-Garphos™</p>Fórmula:C40H36O4P2Pureza:min. 97%Cor e Forma:white xtl.Peso molecular:642.66Phenyldimethoxyphosphine, 98%
CAS:<p>Phenyldimethoxyphosphine, 98%</p>Fórmula:(C6H5)(CH3O)2PPureza:98%Cor e Forma:colorless liq.Peso molecular:170.15(3aR,8aR)-Tetrahydro-6-hydroxy-2,2-dimethyl-4,4,8,8-tetra-2-naphthalenyl-6-oxide-1,3-dioxolo[4,5-e][1,3,2]dioxaphosphepin, 98%, (99% ee)
CAS:Fórmula:C47H37O6PPureza:98%, (99% ee)Cor e Forma:off white to light yellow pwdr.Peso molecular:728.8(2R,3R)-3-(tert-Butyl)-2-isopropyl-4-(2-methoxyphenyl)-2,3-dihydrobenzo[d][1,3]oxaphosphole, 97% (>99% ee)
Fórmula:C21H27O2PPureza:97% (>99% ee)Cor e Forma:white to off-white solidPeso molecular:342.17Butyldi-1-adamantylphosphine, min. 95% [cataCXium® A]
CAS:<p>Butyldi-1-adamantylphosphine, min. 95% [cataCXium® A]</p>Fórmula:C4H9(C10H15)2PPureza:min. 95%Cor e Forma:white to yellow pwdr.Peso molecular:358.54(S)-2-(Diphenylphosphino)-1-phenylethylamine, min. 97%
CAS:<p>(S)-2-(Diphenylphosphino)-1-phenylethylamine, min. 97%</p>Fórmula:C20H20NPPureza:min. 97%Cor e Forma:white solidPeso molecular:381.45N-Phenyl-2-(di-t-butylphosphino)indol, min. 98% [cataCXium® PIntB]
CAS:<p>N-Phenyl-2-(di-t-butylphosphino)indol, min. 98% [cataCXium® PIntB]</p>Fórmula:C22H28NPPureza:min. 98%Cor e Forma:white to yellow pwdr.Peso molecular:337.44Cyclohexyldi-t-butylphosphine, 98% (10wt% in hexanes)
CAS:<p>Cyclohexyldi-t-butylphosphine, 98% (10wt% in hexanes)</p>Fórmula:C14H29PPureza:98%Cor e Forma:colorless liq.Peso molecular:228.36(S)-1-[2-(Diphenylphosphino)phenyl]ethylamine, min. 97%
CAS:<p>(S)-1-[2-(Diphenylphosphino)phenyl]ethylamine, min. 97%</p>Fórmula:C20H20NPPureza:min. 97%Cor e Forma:white solidPeso molecular:305.35Tris(2,4,6-trimethylphenyl)phosphine, 98%
CAS:<p>Tris(2,4,6-trimethylphenyl)phosphine, 98%</p>Fórmula:(CH3)3C6H2PPureza:98%Cor e Forma:white pwdr.Peso molecular:388.53Tris(dimethylamino)phosphine, min. 98% HMPT
CAS:<p>Tris(dimethylamino)phosphine, min. 98% HMPT</p>Fórmula:(CH3)2NPPureza:min. 98%Cor e Forma:yellow liq.Peso molecular:163.21Bis(triphenylphosphine)iminium chloride, 97%
CAS:<p>Bis(triphenylphosphine)iminium chloride, 97%</p>Fórmula:(C6H5)3PNClPureza:97%Cor e Forma:white pwdr.Peso molecular:574.04[S(R)]-N-[(R)-[5-(Diphenylphosphino)-9,9-dimethyl-9H-xanthen-4-yl](4-methoxyphenyl)methyl]-2-methyl-2-propanesulfinamide, 95%
CAS:Fórmula:C39H40NO3PSPureza:95%Cor e Forma:white to off-white pwdr.Peso molecular:633.82-Dicyclohexylphosphino-2'-methyl-)-1,1'-biphenyl, min. 98% MePhos
CAS:<p>2-Dicyclohexylphosphino-2'-methyl-)-1,1'-biphenyl, min. 98% MePhos</p>Fórmula:C25H33PPureza:min. 98%Cor e Forma:white xtl.Peso molecular:364.515-(Dicyclohexylphosphino)-1',3',5'-triphenyl-[1,4']-bi-1H-pyrazole, min. 95% Cy-BippyPhos
CAS:<p>5-(Dicyclohexylphosphino)-1',3',5'-triphenyl-[1,4']-bi-1H-pyrazole, min. 95% Cy-BippyPhos</p>Fórmula:C36H39N4PPureza:min. 95%Cor e Forma:white pwdr.Peso molecular:558.70Di-o-tolylphosphine, min. 97%
CAS:<p>Di-o-tolylphosphine, min. 97%</p>Fórmula:(CH3C6H4)2PHPureza:min. 97%Cor e Forma:colorless solidPeso molecular:214.24Dicyclohexylchlorophosphine, min. 98%
CAS:<p>Dicyclohexylchlorophosphine, min. 98%</p>Fórmula:(C6H11)2PClPureza:min. 98%Cor e Forma:colorless to pale yellow, cloudy liq.Peso molecular:232.74(2S,3S)-(+)-2,3-Bis(diphenylphosphino)-bicyclo[2.2.1]hept-5-ene, min. 95% (S,S)-NORPHOS
CAS:<p>(2S,3S)-(+)-2,3-Bis(diphenylphosphino)-bicyclo[2.2.1]hept-5-ene, min. 95% (S,S)-NORPHOS</p>Fórmula:C31H28P2Pureza:min. 95%Cor e Forma:white xtl.Peso molecular:462.51Tri-t-butylphosphine, 99% (10 wt% in hexanes)
CAS:<p>Tri-t-butylphosphine, 99% (10 wt% in hexanes)</p>Fórmula:(tC4H9)3PPureza:99%Cor e Forma:colorless liq.Peso molecular:202.32(1R,2R)-2-[(4S,11bR)-3,5-Dihydro-4H-dinaphtho[2,1-c:1',2'-e]phosphepin-4-yl]-1-phenylpropan-2-amine, min. 97%
CAS:<p>(1R,2R)-2-[(4S,11bR)-3,5-Dihydro-4H-dinaphtho[2,1-c:1',2'-e]phosphepin-4-yl]-1-phenylpropan-2-amine, min. 97%</p>Fórmula:C31H28NPPureza:min. 97%Cor e Forma:white solidPeso molecular:445.53Triethylphosphine, 99% (20 wt% in ethanol)
CAS:<p>Triethylphosphine, 99% (20 wt% in ethanol)</p>Fórmula:(C2H5)3PPureza:99%Cor e Forma:colorless liq.Peso molecular:118.16(11bR)-8,9,10,11,12,13,14,15-Octahydro-4-hydroxy-2,6-bis(2,4,6-trimethylphenyl)-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, 98% (99% ee)
CAS:<p>(11bR)-8,9,10,11,12,13,14,15-Octahydro-4-hydroxy-2,6-bis(2,4,6-trimethylphenyl)-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, 98% (99% ee)</p>Fórmula:C38H41O4PPureza:98% (99% ee)Cor e Forma:white to light yellow pwdr.Peso molecular:592.7
![(S)-(+)-1,13-Bis(diphenylphosphino)-7,8-dihydro-6H-dibenzo[f,h][1,5]dioxonin, 95% (S)-C₃-TUNEPHOS](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-0176.webp&w=3840&q=75)
![(S)-(+)-(3,5-Dioxa-4-phospha-cyclohepta[2,1-a;3,4-a']dinaphthalen-4-yl)diethylamine, min. 97%](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-1231.webp&w=3840&q=75)
![(11bR)-2,6-Di-1-pyrenyl-4-hydroxy-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, 98%, (99…](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-0364.webp&w=3840&q=75)
![[1-(2R,5R)-2,5-Diethylphospholanyl]-[2-(2R,5R)-2,5-diethylphospholanyl-1-oxide]benzene, min. 97%](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-7354.webp&w=3840&q=75)
![2-((2R,3R)-3-(tert-Butyl)-4-(2,6-dimethoxyphenyl)-2,3-dihydrobenzo[d][1,3]oxaphosphol-2-yl)-6-meth…](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-6862.webp&w=3840&q=75)
![(R)-(-)-(3,5-Dioxa-4-phospha-cyclohepta[2,1-a;3,4-a']dinaphthalen-4-yl)dimethylamine, min. 97% (R)…](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-1232.webp&w=3840&q=75)
![Tris[2-(diphenylphosphino)ethyl]phosphine, 98% PP₃](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-7888.webp&w=3840&q=75)
![(S)-3-(tert-Butyl)-4-(3,5-diisopropyl-2,6-dimethoxyphenyl)-2,3-dihydrobenzo[d][1,3]oxaphosphole, 9…](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-6844.webp&w=3840&q=75)
![(2S,3S)-3-(tert-Butyl)-4-(2,6-diphenoxyphenyl)-2-methyl-2,3-dihydrobenzo[d][1,3]oxaphosphole, 97% …](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-6832.webp&w=3840&q=75)
![(11bS)-2,6-Bis[3,5-bis(1,1-dimethylethyl)phenyl]-4-hydroxy-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]…](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-0559.webp&w=3840&q=75)
![(11bS)-4-Hydroxy-2,6-bis(4-methoxyphenyl)-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, …](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-0308.webp&w=3840&q=75)
![[2-(N,N-Dimethylamino)phenyl]di-t-butylphosphine, min. 95%](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-1260.webp&w=3840&q=75)
![(2R,3R)-3-(tert-Butyl)-2-isopropyl-4-(2-methoxyphenyl)-2,3-dihydrobenzo[d][1,3]oxaphosphole, 97% (…](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-6878.webp&w=3840&q=75)
![Butyldi-1-adamantylphosphine, min. 95% [cataCXium® A]](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-0483.webp&w=3840&q=75)
![N-Phenyl-2-(di-t-butylphosphino)indol, min. 98% [cataCXium® PIntB]](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-3550.webp&w=3840&q=75)
![(S)-1-[2-(Diphenylphosphino)phenyl]ethylamine, min. 97%](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-7119.webp&w=3840&q=75)
![[S(R)]-N-[(R)-[5-(Diphenylphosphino)-9,9-dimethyl-9H-xanthen-4-yl](4-methoxyphenyl)methyl]-2-methy…](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-8400.webp&w=3840&q=75)
![5-(Dicyclohexylphosphino)-1',3',5'-triphenyl-[1,4']-bi-1H-pyrazole, min. 95% Cy-BippyPhos](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-1039.webp&w=3840&q=75)
![(2S,3S)-(+)-2,3-Bis(diphenylphosphino)-bicyclo[2.2.1]hept-5-ene, min. 95% (S,S)-NORPHOS](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-0141.webp&w=3840&q=75)
![(1R,2R)-2-[(4S,11bR)-3,5-Dihydro-4H-dinaphtho[2,1-c:1',2'-e]phosphepin-4-yl]-1-phenylpropan-2-amin…](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F08%2Fthumb-webp%2F15-7141.webp&w=3840&q=75)
