同位素标记物 - 上海智溯科生物科技有限公司

首页/同位素标记物

13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate
13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate

货号：ISX-ST-0645
品牌：isospex

13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate
13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate

货号：ISX-ST-0645
品牌：isospex
D13-Alachlor ESA Sodium Salt
D13-Alachlor ESA Sodium Salt

货号：ISX-ST-0644
品牌：isospex

D13-Alachlor ESA Sodium Salt
D13-Alachlor ESA Sodium Salt

货号：ISX-ST-0644
品牌：isospex
13C4-Lithocholic Acid
13C4-Lithocholic Acid

货号：ISX-ST-0643
品牌：isospex

13C4-Lithocholic Acid
13C4-Lithocholic Acid

货号：ISX-ST-0643
品牌：isospex
13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt
13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt

货号：ISX-ST-0642
品牌：isospex

13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt
13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt

货号：ISX-ST-0642
品牌：isospex
D8-Imidocarb dihydrochloride
D8-Imidocarb dihydrochloride

货号：ISX-ST-0641
品牌：isospex

D8-Imidocarb dihydrochloride
D8-Imidocarb dihydrochloride

货号：ISX-ST-0641
品牌：isospex
1-13C-Lauric Acid
1-13C-Lauric Acid

货号：ISX-ST-0640
品牌：isospex

1-13C-Lauric Acid
1-13C-Lauric Acid

货号：ISX-ST-0640
品牌：isospex
D9-Reserpine
D9-Reserpine

货号：ISX-ST-0639
品牌：isospex

D9-Reserpine
D9-Reserpine

货号：ISX-ST-0639
品牌：isospex
D6-Neral
D6-Neral

货号：ISX-ST-0638
品牌：isospex

D6-Neral
D6-Neral

货号：ISX-ST-0638
品牌：isospex
D8-1,4-Diaminobutane
D8-1,4-Diaminobutane

货号：ISX-ST-0637
品牌：isospex

D8-1,4-Diaminobutane
D8-1,4-Diaminobutane

货号：ISX-ST-0637
品牌：isospex
Methoxy-13C-Methacetin
Methoxy-13C-Methacetin

货号：ISX-ST-0636
品牌：isospex

Methoxy-13C-Methacetin
Methoxy-13C-Methacetin

货号：ISX-ST-0636
品牌：isospex
N,N,N-trimethyl-D9-Choline Bromide
N,N,N-trimethyl-D9-Choline Bromide

货号：ISX-ST-0635
品牌：isospex

N,N,N-trimethyl-D9-Choline Bromide
N,N,N-trimethyl-D9-Choline Bromide

货号：ISX-ST-0635
品牌：isospex
D3-2-Methoxy-acetic Acid
D3-2-Methoxy-acetic Acid

货号：ISX-ST-0634
品牌：isospex

D3-2-Methoxy-acetic Acid
D3-2-Methoxy-acetic Acid

货号：ISX-ST-0634
品牌：isospex
D5- (±)-1-Amino-2-phenyl-propane
D5- (±)-1-Amino-2-phenyl-propane

货号：ISX-ST-0633
品牌：isospex

D5- (±)-1-Amino-2-phenyl-propane
D5- (±)-1-Amino-2-phenyl-propane

货号：ISX-ST-0633
品牌：isospex
13C10-1,2,3,5,6,7-Hexacn (Pcn-67)
13C10-1,2,3,5,6,7-Hexacn (Pcn-67)

货号：ISX-ST-0632
品牌：isospex

13C10-1,2,3,5,6,7-Hexacn (Pcn-67)
13C10-1,2,3,5,6,7-Hexacn (Pcn-67)

货号：ISX-ST-0632
品牌：isospex
D4-Quetiapine hemifumarate
D4-Quetiapine hemifumarate

货号：ISX-ST-0631
品牌：isospex

D4-Quetiapine hemifumarate
D4-Quetiapine hemifumarate

货号：ISX-ST-0631
品牌：isospex
D8-Diquat Dibromide
D8-Diquat Dibromide

货号：ISX-ST-0630
品牌：isospex

D8-Diquat Dibromide
D8-Diquat Dibromide

货号：ISX-ST-0630
品牌：isospex
D5-Mepanipyrim Phenyl
D5-Mepanipyrim Phenyl

货号：ISX-ST-0629
品牌：isospex

D5-Mepanipyrim Phenyl
D5-Mepanipyrim Phenyl

货号：ISX-ST-0629
品牌：isospex
D3-Binimetinib
D3-Binimetinib

货号：ISX-ST-0628
品牌：isospex

D3-Binimetinib
D3-Binimetinib

货号：ISX-ST-0628
品牌：isospex
D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine
D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine

货号：ISX-ST-0627
品牌：isospex

D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine
D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine

货号：ISX-ST-0627
品牌：isospex
D10-Hexanedioic Acid
D10-Hexanedioic Acid

货号：ISX-ST-0626
品牌：isospex

D10-Hexanedioic Acid
D10-Hexanedioic Acid

货号：ISX-ST-0626
品牌：isospex
13C6-Rafoxanide
13C6-Rafoxanide

货号：ISX-ST-0625
品牌：isospex

13C6-Rafoxanide
13C6-Rafoxanide

货号：ISX-ST-0625
品牌：isospex
13C10-Oxychlordane
13C10-Oxychlordane

货号：ISX-ST-0624
品牌：isospex

13C10-Oxychlordane
13C10-Oxychlordane

货号：ISX-ST-0624
品牌：isospex
13C2-2-Ethyl-3,5-dimethylpyrazine
13C2-2-Ethyl-3,5-dimethylpyrazine

货号：ISX-ST-0623
品牌：isospex

13C2-2-Ethyl-3,5-dimethylpyrazine
13C2-2-Ethyl-3,5-dimethylpyrazine

货号：ISX-ST-0623
品牌：isospex
D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt
D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt

货号：ISX-ST-0622
品牌：isospex

D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt
D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt

货号：ISX-ST-0622
品牌：isospex
D4-Methyl 6β-Naltrexol
D4-Methyl 6β-Naltrexol

货号：ISX-ST-0621
品牌：isospex

D4-Methyl 6β-Naltrexol
D4-Methyl 6β-Naltrexol

货号：ISX-ST-0621
品牌：isospex
D,13C2-Treprostinil Sodium Salt
D,13C2-Treprostinil Sodium Salt

货号：ISX-ST-0620
品牌：isospex

D,13C2-Treprostinil Sodium Salt
D,13C2-Treprostinil Sodium Salt

货号：ISX-ST-0620
品牌：isospex
13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)
13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)

货号：ISX-ST-0619
品牌：isospex

13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)
13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)

货号：ISX-ST-0619
品牌：isospex
13C-Propionic Acid
13C-Propionic Acid

货号：ISX-ST-0618
品牌：isospex

13C-Propionic Acid
13C-Propionic Acid

货号：ISX-ST-0618
品牌：isospex
D4-Dexamethasone
D4-Dexamethasone

货号：ISX-ST-0617
品牌：isospex

D4-Dexamethasone
D4-Dexamethasone

货号：ISX-ST-0617
品牌：isospex
D8-9-Phenanthrol
D8-9-Phenanthrol

货号：ISX-ST-0616
品牌：isospex

D8-9-Phenanthrol
D8-9-Phenanthrol

货号：ISX-ST-0616
品牌：isospex
D9-Pravastatin ammonium salt
D9-Pravastatin ammonium salt

货号：ISX-ST-0615
品牌：isospex

D9-Pravastatin ammonium salt
D9-Pravastatin ammonium salt

货号：ISX-ST-0615
品牌：isospex
D3-Trigonelline HI
D3-Trigonelline HI

货号：ISX-ST-0614
品牌：isospex

D3-Trigonelline HI
D3-Trigonelline HI

货号：ISX-ST-0614
品牌：isospex
D5-Epichlorohydrin
D5-Epichlorohydrin

货号：ISX-ST-0613
品牌：isospex

D5-Epichlorohydrin
D5-Epichlorohydrin

货号：ISX-ST-0613
品牌：isospex
D5-Bisoprolol
D5-Bisoprolol

货号：ISX-ST-0612
品牌：isospex

D5-Bisoprolol
D5-Bisoprolol

货号：ISX-ST-0612
品牌：isospex
13C8-Indole
13C8-Indole

货号：ISX-ST-0611
品牌：isospex

13C8-Indole
13C8-Indole

货号：ISX-ST-0611
品牌：isospex
D5-1-Palmitoyl-2-stearoyl-3-chloropropanediol
D5-1-Palmitoyl-2-stearoyl-3-chloropropanediol

货号：ISX-ST-0610
品牌：isospex

D5-1-Palmitoyl-2-stearoyl-3-chloropropanediol
D5-1-Palmitoyl-2-stearoyl-3-chloropropanediol

货号：ISX-ST-0610
品牌：isospex
UL-13C6-D-idose
UL-13C6-D-idose

货号：ISX-ST-0609
品牌：isospex

UL-13C6-D-idose
UL-13C6-D-idose

货号：ISX-ST-0609
品牌：isospex
13C4-Glycylglycine
13C4-Glycylglycine

货号：ISX-ST-0608
品牌：isospex

13C4-Glycylglycine
13C4-Glycylglycine

货号：ISX-ST-0608
品牌：isospex
13C6-Meclofenamic acid
13C6-Meclofenamic acid

货号：ISX-ST-0607
品牌：isospex

13C6-Meclofenamic acid
13C6-Meclofenamic acid

货号：ISX-ST-0607
品牌：isospex
D2;13C-Lasmiditan
D2;13C-Lasmiditan

货号：ISX-ST-0606
品牌：isospex

D2;13C-Lasmiditan
D2;13C-Lasmiditan

货号：ISX-ST-0606
品牌：isospex

上一页 1 2...254 255 256257258 259 260...272 273 下一页

13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate

13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate

D13-Alachlor ESA Sodium SaltD13-Alachlor ESA Sodium Salt

D13-Alachlor ESA Sodium SaltD13-Alachlor ESA Sodium Salt

13C4-Lithocholic Acid13C4-Lithocholic Acid

13C4-Lithocholic Acid13C4-Lithocholic Acid

13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt

13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt

D8-Imidocarb dihydrochlorideD8-Imidocarb dihydrochloride

D8-Imidocarb dihydrochlorideD8-Imidocarb dihydrochloride

1-13C-Lauric Acid1-13C-Lauric Acid

1-13C-Lauric Acid1-13C-Lauric Acid

D9-ReserpineD9-Reserpine

D9-ReserpineD9-Reserpine

D6-NeralD6-Neral

D6-NeralD6-Neral

D8-1,4-DiaminobutaneD8-1,4-Diaminobutane

D8-1,4-DiaminobutaneD8-1,4-Diaminobutane

Methoxy-13C-MethacetinMethoxy-13C-Methacetin

Methoxy-13C-MethacetinMethoxy-13C-Methacetin

N,N,N-trimethyl-D9-Choline BromideN,N,N-trimethyl-D9-Choline Bromide

N,N,N-trimethyl-D9-Choline BromideN,N,N-trimethyl-D9-Choline Bromide

D3-2-Methoxy-acetic AcidD3-2-Methoxy-acetic Acid

D3-2-Methoxy-acetic AcidD3-2-Methoxy-acetic Acid

D5- (±)-1-Amino-2-phenyl-propaneD5- (±)-1-Amino-2-phenyl-propane

D5- (±)-1-Amino-2-phenyl-propaneD5- (±)-1-Amino-2-phenyl-propane

13C10-1,2,3,5,6,7-Hexacn (Pcn-67)13C10-1,2,3,5,6,7-Hexacn (Pcn-67)

13C10-1,2,3,5,6,7-Hexacn (Pcn-67)13C10-1,2,3,5,6,7-Hexacn (Pcn-67)

D4-Quetiapine hemifumarateD4-Quetiapine hemifumarate

D4-Quetiapine hemifumarateD4-Quetiapine hemifumarate

D8-Diquat DibromideD8-Diquat Dibromide

D8-Diquat DibromideD8-Diquat Dibromide

D5-Mepanipyrim PhenylD5-Mepanipyrim Phenyl

D5-Mepanipyrim PhenylD5-Mepanipyrim Phenyl

D3-BinimetinibD3-Binimetinib

D3-BinimetinibD3-Binimetinib

D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteineD4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine

D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteineD4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine

D10-Hexanedioic AcidD10-Hexanedioic Acid

D10-Hexanedioic AcidD10-Hexanedioic Acid

13C6-Rafoxanide13C6-Rafoxanide

13C6-Rafoxanide13C6-Rafoxanide

13C10-Oxychlordane13C10-Oxychlordane

13C10-Oxychlordane13C10-Oxychlordane

13C2-2-Ethyl-3,5-dimethylpyrazine13C2-2-Ethyl-3,5-dimethylpyrazine

13C2-2-Ethyl-3,5-dimethylpyrazine13C2-2-Ethyl-3,5-dimethylpyrazine

D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium SaltD5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt

D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium SaltD5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt

D4-Methyl 6β-NaltrexolD4-Methyl 6β-Naltrexol

D4-Methyl 6β-NaltrexolD4-Methyl 6β-Naltrexol

D,13C2-Treprostinil Sodium SaltD,13C2-Treprostinil Sodium Salt

D,13C2-Treprostinil Sodium SaltD,13C2-Treprostinil Sodium Salt

13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)

13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)

13C-Propionic Acid13C-Propionic Acid

13C-Propionic Acid13C-Propionic Acid

D4-DexamethasoneD4-Dexamethasone

D4-DexamethasoneD4-Dexamethasone

D8-9-PhenanthrolD8-9-Phenanthrol

D8-9-PhenanthrolD8-9-Phenanthrol

D9-Pravastatin ammonium saltD9-Pravastatin ammonium salt

D9-Pravastatin ammonium saltD9-Pravastatin ammonium salt

D3-Trigonelline HID3-Trigonelline HI

D3-Trigonelline HID3-Trigonelline HI

D5-EpichlorohydrinD5-Epichlorohydrin

D5-EpichlorohydrinD5-Epichlorohydrin

D5-BisoprololD5-Bisoprolol

D5-BisoprololD5-Bisoprolol

13C8-Indole13C8-Indole

13C8-Indole13C8-Indole

D5-1-Palmitoyl-2-stearoyl-3-chloropropanediolD5-1-Palmitoyl-2-stearoyl-3-chloropropanediol

D5-1-Palmitoyl-2-stearoyl-3-chloropropanediolD5-1-Palmitoyl-2-stearoyl-3-chloropropanediol

UL-13C6-D-idoseUL-13C6-D-idose

UL-13C6-D-idoseUL-13C6-D-idose

13C4-Glycylglycine13C4-Glycylglycine

13C4-Glycylglycine13C4-Glycylglycine

13C6-Meclofenamic acid13C6-Meclofenamic acid

13C6-Meclofenamic acid13C6-Meclofenamic acid

D2;13C-LasmiditanD2;13C-Lasmiditan

D2;13C-LasmiditanD2;13C-Lasmiditan

13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate
13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate

13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate
13C4-Mono- (4-Methyl-7-Hydroxyoctyl) Phthalate

D13-Alachlor ESA Sodium Salt
D13-Alachlor ESA Sodium Salt

D13-Alachlor ESA Sodium Salt
D13-Alachlor ESA Sodium Salt

13C4-Lithocholic Acid
13C4-Lithocholic Acid

13C4-Lithocholic Acid
13C4-Lithocholic Acid

13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt
13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt

13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt
13C6-Thyroxine 4’-O-β-D-Glucuronide Disodium Salt

D8-Imidocarb dihydrochloride
D8-Imidocarb dihydrochloride

D8-Imidocarb dihydrochloride
D8-Imidocarb dihydrochloride

1-13C-Lauric Acid
1-13C-Lauric Acid

1-13C-Lauric Acid
1-13C-Lauric Acid

D9-Reserpine
D9-Reserpine

D9-Reserpine
D9-Reserpine

D6-Neral
D6-Neral

D6-Neral
D6-Neral

D8-1,4-Diaminobutane
D8-1,4-Diaminobutane

D8-1,4-Diaminobutane
D8-1,4-Diaminobutane

Methoxy-13C-Methacetin
Methoxy-13C-Methacetin

Methoxy-13C-Methacetin
Methoxy-13C-Methacetin

N,N,N-trimethyl-D9-Choline Bromide
N,N,N-trimethyl-D9-Choline Bromide

N,N,N-trimethyl-D9-Choline Bromide
N,N,N-trimethyl-D9-Choline Bromide

D3-2-Methoxy-acetic Acid
D3-2-Methoxy-acetic Acid

D3-2-Methoxy-acetic Acid
D3-2-Methoxy-acetic Acid

D5- (±)-1-Amino-2-phenyl-propane
D5- (±)-1-Amino-2-phenyl-propane

D5- (±)-1-Amino-2-phenyl-propane
D5- (±)-1-Amino-2-phenyl-propane

13C10-1,2,3,5,6,7-Hexacn (Pcn-67)
13C10-1,2,3,5,6,7-Hexacn (Pcn-67)

13C10-1,2,3,5,6,7-Hexacn (Pcn-67)
13C10-1,2,3,5,6,7-Hexacn (Pcn-67)

D4-Quetiapine hemifumarate
D4-Quetiapine hemifumarate

D4-Quetiapine hemifumarate
D4-Quetiapine hemifumarate

D8-Diquat Dibromide
D8-Diquat Dibromide

D8-Diquat Dibromide
D8-Diquat Dibromide

D5-Mepanipyrim Phenyl
D5-Mepanipyrim Phenyl

D5-Mepanipyrim Phenyl
D5-Mepanipyrim Phenyl

D3-Binimetinib
D3-Binimetinib

D3-Binimetinib
D3-Binimetinib

D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine
D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine

D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine
D4-N-Acetyl-S-(2-carbamoylethyl)-L-cysteine

D10-Hexanedioic Acid
D10-Hexanedioic Acid

D10-Hexanedioic Acid
D10-Hexanedioic Acid

13C6-Rafoxanide
13C6-Rafoxanide

13C6-Rafoxanide
13C6-Rafoxanide

13C10-Oxychlordane
13C10-Oxychlordane

13C10-Oxychlordane
13C10-Oxychlordane

13C2-2-Ethyl-3,5-dimethylpyrazine
13C2-2-Ethyl-3,5-dimethylpyrazine

13C2-2-Ethyl-3,5-dimethylpyrazine
13C2-2-Ethyl-3,5-dimethylpyrazine

D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt
D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt

D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt
D5-Tauro 6-Ethlchenodeoxycholic Acid Sodium Salt

D4-Methyl 6β-Naltrexol
D4-Methyl 6β-Naltrexol

D4-Methyl 6β-Naltrexol
D4-Methyl 6β-Naltrexol

D,13C2-Treprostinil Sodium Salt
D,13C2-Treprostinil Sodium Salt

D,13C2-Treprostinil Sodium Salt
D,13C2-Treprostinil Sodium Salt

13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)
13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)

13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)
13C12-2,2',3,4,4',5,6,6'-Octabromodiphenyl ether (BDE-204)

13C-Propionic Acid
13C-Propionic Acid

13C-Propionic Acid
13C-Propionic Acid

D4-Dexamethasone
D4-Dexamethasone

D4-Dexamethasone
D4-Dexamethasone

D8-9-Phenanthrol
D8-9-Phenanthrol

D8-9-Phenanthrol
D8-9-Phenanthrol

D9-Pravastatin ammonium salt
D9-Pravastatin ammonium salt

D9-Pravastatin ammonium salt
D9-Pravastatin ammonium salt

D3-Trigonelline HI
D3-Trigonelline HI

D3-Trigonelline HI
D3-Trigonelline HI

D5-Epichlorohydrin
D5-Epichlorohydrin

D5-Epichlorohydrin
D5-Epichlorohydrin

D5-Bisoprolol
D5-Bisoprolol

D5-Bisoprolol
D5-Bisoprolol

13C8-Indole
13C8-Indole

13C8-Indole
13C8-Indole

D5-1-Palmitoyl-2-stearoyl-3-chloropropanediol
D5-1-Palmitoyl-2-stearoyl-3-chloropropanediol

D5-1-Palmitoyl-2-stearoyl-3-chloropropanediol
D5-1-Palmitoyl-2-stearoyl-3-chloropropanediol

UL-13C6-D-idose
UL-13C6-D-idose

UL-13C6-D-idose
UL-13C6-D-idose

13C4-Glycylglycine
13C4-Glycylglycine

13C4-Glycylglycine
13C4-Glycylglycine

13C6-Meclofenamic acid
13C6-Meclofenamic acid

13C6-Meclofenamic acid
13C6-Meclofenamic acid

D2;13C-Lasmiditan
D2;13C-Lasmiditan

D2;13C-Lasmiditan
D2;13C-Lasmiditan