-南京康满林

N-([1,1'-biphenyl]-4-yl)-N-(4-(2-(tert-butyl)-5-methylcyclohexyl)phenyl)-4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine

KL-3069791-085

N-([1,1'-联苯]-4-基)-N-(4-(2-(叔丁基)-5-甲基环己基)苯基)-4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-胺

N-([1,1'-biphenyl]-4-yl)-N-(4-(2-(tert-butyl)-5-methylcyclohexyl)phenyl)-4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine

3069791-08-5C₅₃H₅₀N₂715

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-([1,1'-biphenyl]-4-yl)-9-(dibenzo[b,d]furan-2-yl)-9H-carbazol-2-amine

KL-2242880-880

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-([1,1'-联苯]-4-基)-9-(二苯并[b,d]呋喃-2-基)-9H-咔唑-2-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-([1,1'-biphenyl]-4-yl)-9-(dibenzo[b,d]furan-2-yl)-9H-carbazol-2-amine

2242880-88-0C₆₀H₃₉N₃O817.99

需询价

价格库存

N-([1,1'-biphenyl]-4-yl)-4'-(9H-dibenzo[a,c]carbazol-9-yl)-N-(4-(naphthalen-1-yl)phenyl)-[1,1'-biphenyl]-4-amine

KL-1429931-952

N-([1,1'-联苯]-4-基)-4'-(9H-二苯并[a,c]咔唑-9-基)-N-(4-(萘-1-基)苯基)-[1,1'-联苯]-4-胺

N-([1,1'-biphenyl]-4-yl)-4'-(9H-dibenzo[a,c]carbazol-9-yl)-N-(4-(naphthalen-1-yl)phenyl)-[1,1'-biphenyl]-4-amine

1429931-95-2C₆₀H₄₀N₂788.99

需询价

价格库存

N-([1,1'-biphenyl]-4-yl)-4'-(3-(8,8-dimethyl-4-phenyl-4,8-dihydrocyclopenta[def]fluoren-4-yl)-9H-carbazol-9-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

KL-2891837-902

N-([1,1'-联苯]-4-基)-4'-(3-(8,8-二甲基-4-苯基-4,8-二氢环戊烷并[def]芴-4-基)-9H-咔唑-9-基)-N-苯基-[1,1'-联苯]-4-胺

N-([1,1'-biphenyl]-4-yl)-4'-(3-(8,8-dimethyl-4-phenyl-4,8-dihydrocyclopenta[def]fluoren-4-yl)-9H-carbazol-9-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

2891837-90-2C₆₄H₄₆N₂843.09

需询价

价格库存

N-([1,1'-biphenyl]-4-yl)-4'-(3,6-bis(benzo[d]thiazol-2-yl)-9H-carbazol-9-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

KL-3100234-496

N-([1,1'-联苯]-4-基)-4'-(3,6-双(苯并[d]噻唑-2-基)-9H-咔唑-9-基)-N-苯基-[1,1'-联苯]-4-胺

N-([1,1'-biphenyl]-4-yl)-4'-(3,6-bis(benzo[d]thiazol-2-yl)-9H-carbazol-9-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

3100234-49-6C₅₆H₃₆N₄S₂829.05

需询价

价格库存

N-([1,1'-biphenyl]-4-yl)-4'-(furo[2,3-a:5,4-a']dicarbazol-13(15H)-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

KL-1640969-249

N-([1,1'-联苯]-4-基)-4'-(呋喃并[2,3-a:5,4-a']二咔唑-13(15H)-基)-N-苯基-[1,1'-联苯]-4-胺

N-([1,1'-biphenyl]-4-yl)-4'-(furo[2,3-a:5,4-a']dicarbazol-13(15H)-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

1640969-24-9C₅₄H₃₅N₃O741.89

需询价

价格库存

N-([1,1'-biphenyl]-4-yl)-4'-(1-(naphthalen-1-yl)-7H-benzo[c]carbazol-7-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

KL-2896814-972

N-([1,1'-联苯]-4-基)-4'-(1-(萘-1-基)-7H-苯并[c]咔唑-7-基)-N-苯基-[1,1'-联苯]-4-胺

N-([1,1'-biphenyl]-4-yl)-4'-(1-(naphthalen-1-yl)-7H-benzo[c]carbazol-7-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

2896814-97-2C₅₆H₃₈N₂738.93

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(naphthalen-2-yl)dibenzo[b,d]thiophen-2-amine

KL-1569818-456

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(萘-2-基)二苯并[b,d]噻吩-2-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(naphthalen-2-yl)dibenzo[b,d]thiophen-2-amine

1569818-45-6C₄₆H₃₀N₂S642.82

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(2-(dibenzo[b,d]furan-2-yl)naphthalen-1-yl)phenyl)-[1,1'-biphenyl]-3-amine

KL-2991554-482

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(2-(二苯并[b,d]呋喃-2-基)萘-1-基)苯基)-[1,1'-联苯]-3-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(2-(dibenzo[b,d]furan-2-yl)naphthalen-1-yl)phenyl)-[1,1'-biphenyl]-3-amine

2991554-48-2C₆₄H₄₂N₂O855.05

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(triphenylsilyl)phenyl)indolo[3,2,1-jk]carbazol-2-amine

KL-1799441-885

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(三苯基硅烷基)苯基)吲哚并[3,2,1-jk]咔唑-2-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(triphenylsilyl)phenyl)indolo[3,2,1-jk]carbazol-2-amine

1799441-88-5C₆₆H₄₅N₃Si908.19

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(phenanthren-9-yl)phenyl)-4'-(2-phenylnaphthalen-1-yl)-[1,1'-biphenyl]-4-amine

KL-2991558-484

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(菲-9-基)苯基)-4'-(2-苯基萘-1-基)-[1,1'-联苯]-4-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(phenanthren-9-yl)phenyl)-4'-(2-phenylnaphthalen-1-yl)-[1,1'-biphenyl]-4-amine

2991558-48-4C₇₂H₄₈N₂941.19

需询价

价格库存

N-(4-(9,9'-spirobi[fluoren]-2-yl)phenyl)-N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-3-amine

KL-2375580-622

N-(4-(9,9'-螺bi[fluoren]-2-基)苯基)-N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-[1,1'-联苯]-3-胺

N-(4-(9,9'-spirobi[fluoren]-2-yl)phenyl)-N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-3-amine

2375580-62-2C₆₇H₄₄N₂877.1

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(9H-carbazol-9-yl)phenyl)benzo[d]oxazol-5-amine

KL-2382761-911

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(9H-咔唑-9-基)苯基)苯并[d]噁唑-5-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(9H-carbazol-9-yl)phenyl)benzo[d]oxazol-5-amine

2382761-91-1C₄₉H₃₂N₄O692.82

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(8-phenylnaphthalen-1-yl)phenyl)-[1,1'-biphenyl]-3-amine

KL-3007561-545

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(8-苯基萘-1-基)苯基)-[1,1'-联苯]-3-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(8-phenylnaphthalen-1-yl)phenyl)-[1,1'-biphenyl]-3-amine

3007561-54-5C₅₈H₄₀N₂764.97

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(8-phenylnaphthalen-1-yl)phenyl)dibenzo[b,d]furan-3-amine

KL-3007561-783

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(8-苯基萘-1-基)苯基)二苯并[b,d]呋喃-3-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(8-phenylnaphthalen-1-yl)phenyl)dibenzo[b,d]furan-3-amine

3007561-78-3C₅₈H₃₈N₂O778.95

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(8-phenylnaphthalen-1-yl)phenyl)dibenzo[b,d]furan-1-amine

KL-3007561-761

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(8-苯基萘-1-基)苯基)二苯并[b,d]呋喃-1-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(8-phenylnaphthalen-1-yl)phenyl)dibenzo[b,d]furan-1-amine

3007561-76-1C₅₈H₃₈N₂O778.95

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(6-phenylnaphthalen-2-yl)phenyl)-[1,1'-biphenyl]-3-amine

KL-2919007-626

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(6-苯基萘-2-基)苯基)-[1,1'-联苯]-3-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(6-phenylnaphthalen-2-yl)phenyl)-[1,1'-biphenyl]-3-amine

2919007-62-6C₅₈H₄₀N₂764.97

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(7-phenylphenanthren-9-yl)phenyl)-[1,1'-biphenyl]-2-amine

KL-3061599-150

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(7-苯基菲-9-基)苯基)-[1,1'-联苯]-2-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(7-phenylphenanthren-9-yl)phenyl)-[1,1'-biphenyl]-2-amine

3061599-15-0C₆₂H₄₂N₂815.03

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(quinazolin-5-yl)phenyl)dibenzo[b,d]thiophen-3-amine

KL-3086057-851

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(喹唑啉-5-基)苯基)二苯并[b,d]噻吩-3-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(quinazolin-5-yl)phenyl)dibenzo[b,d]thiophen-3-amine

3086057-85-1C₅₀H₃₂N₄S720.89

需询价

价格库存

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(dibenzo[b,d]furan-4-yl)phenyl)-9,9-diphenyl-9H-fluoren-4-amine

KL-1852484-764

N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(二苯并[b,d]呋喃-4-基)苯基)-9,9-二苯基-9H-芴-4-胺

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(dibenzo[b,d]furan-4-yl)phenyl)-9,9-diphenyl-9H-fluoren-4-amine

1852484-76-4C₆₇H₄₄N₂O893.1

需询价

价格库存

KL-3069791-085 N-([1,1'-联苯]-4-基)-N-(4-(2-(叔丁基)-5-甲基环己基)苯基)-4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-胺 N-([1,1'-biphenyl]-4-yl)-N-(4-(2-(tert-butyl)-5-methylcyclohexyl)phenyl)-4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine	3069791-08-5C₅₃H₅₀N₂715	需询价	价格库存
KL-2242880-880 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-([1,1'-联苯]-4-基)-9-(二苯并[b,d]呋喃-2-基)-9H-咔唑-2-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-([1,1'-biphenyl]-4-yl)-9-(dibenzo[b,d]furan-2-yl)-9H-carbazol-2-amine	2242880-88-0C₆₀H₃₉N₃O817.99	需询价	价格库存
KL-1429931-952 N-([1,1'-联苯]-4-基)-4'-(9H-二苯并[a,c]咔唑-9-基)-N-(4-(萘-1-基)苯基)-[1,1'-联苯]-4-胺 N-([1,1'-biphenyl]-4-yl)-4'-(9H-dibenzo[a,c]carbazol-9-yl)-N-(4-(naphthalen-1-yl)phenyl)-[1,1'-biphenyl]-4-amine	1429931-95-2C₆₀H₄₀N₂788.99	需询价	价格库存
KL-2891837-902 N-([1,1'-联苯]-4-基)-4'-(3-(8,8-二甲基-4-苯基-4,8-二氢环戊烷并[def]芴-4-基)-9H-咔唑-9-基)-N-苯基-[1,1'-联苯]-4-胺 N-([1,1'-biphenyl]-4-yl)-4'-(3-(8,8-dimethyl-4-phenyl-4,8-dihydrocyclopenta[def]fluoren-4-yl)-9H-carbazol-9-yl)-N-phenyl-[1,1'-biphenyl]-4-amine	2891837-90-2C₆₄H₄₆N₂843.09	需询价	价格库存
KL-3100234-496 N-([1,1'-联苯]-4-基)-4'-(3,6-双(苯并[d]噻唑-2-基)-9H-咔唑-9-基)-N-苯基-[1,1'-联苯]-4-胺 N-([1,1'-biphenyl]-4-yl)-4'-(3,6-bis(benzo[d]thiazol-2-yl)-9H-carbazol-9-yl)-N-phenyl-[1,1'-biphenyl]-4-amine	3100234-49-6C₅₆H₃₆N₄S₂829.05	需询价	价格库存
KL-1640969-249 N-([1,1'-联苯]-4-基)-4'-(呋喃并[2,3-a:5,4-a']二咔唑-13(15H)-基)-N-苯基-[1,1'-联苯]-4-胺 N-([1,1'-biphenyl]-4-yl)-4'-(furo[2,3-a:5,4-a']dicarbazol-13(15H)-yl)-N-phenyl-[1,1'-biphenyl]-4-amine	1640969-24-9C₅₄H₃₅N₃O741.89	需询价	价格库存
KL-2896814-972 N-([1,1'-联苯]-4-基)-4'-(1-(萘-1-基)-7H-苯并[c]咔唑-7-基)-N-苯基-[1,1'-联苯]-4-胺 N-([1,1'-biphenyl]-4-yl)-4'-(1-(naphthalen-1-yl)-7H-benzo[c]carbazol-7-yl)-N-phenyl-[1,1'-biphenyl]-4-amine	2896814-97-2C₅₆H₃₈N₂738.93	需询价	价格库存
KL-1569818-456 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(萘-2-基)二苯并[b,d]噻吩-2-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(naphthalen-2-yl)dibenzo[b,d]thiophen-2-amine	1569818-45-6C₄₆H₃₀N₂S642.82	需询价	价格库存
KL-2991554-482 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(2-(二苯并[b,d]呋喃-2-基)萘-1-基)苯基)-[1,1'-联苯]-3-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(2-(dibenzo[b,d]furan-2-yl)naphthalen-1-yl)phenyl)-[1,1'-biphenyl]-3-amine	2991554-48-2C₆₄H₄₂N₂O855.05	需询价	价格库存
KL-1799441-885 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(三苯基硅烷基)苯基)吲哚并[3,2,1-jk]咔唑-2-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(triphenylsilyl)phenyl)indolo[3,2,1-jk]carbazol-2-amine	1799441-88-5C₆₆H₄₅N₃Si908.19	需询价	价格库存
KL-2991558-484 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(菲-9-基)苯基)-4'-(2-苯基萘-1-基)-[1,1'-联苯]-4-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(phenanthren-9-yl)phenyl)-4'-(2-phenylnaphthalen-1-yl)-[1,1'-biphenyl]-4-amine	2991558-48-4C₇₂H₄₈N₂941.19	需询价	价格库存
KL-2375580-622 N-(4-(9,9'-螺bi[fluoren]-2-基)苯基)-N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-[1,1'-联苯]-3-胺 N-(4-(9,9'-spirobi[fluoren]-2-yl)phenyl)-N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-3-amine	2375580-62-2C₆₇H₄₄N₂877.1	需询价	价格库存
KL-2382761-911 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(9H-咔唑-9-基)苯基)苯并[d]噁唑-5-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(9H-carbazol-9-yl)phenyl)benzo[d]oxazol-5-amine	2382761-91-1C₄₉H₃₂N₄O692.82	需询价	价格库存
KL-3007561-545 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(8-苯基萘-1-基)苯基)-[1,1'-联苯]-3-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(8-phenylnaphthalen-1-yl)phenyl)-[1,1'-biphenyl]-3-amine	3007561-54-5C₅₈H₄₀N₂764.97	需询价	价格库存
KL-3007561-783 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(8-苯基萘-1-基)苯基)二苯并[b,d]呋喃-3-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(8-phenylnaphthalen-1-yl)phenyl)dibenzo[b,d]furan-3-amine	3007561-78-3C₅₈H₃₈N₂O778.95	需询价	价格库存
KL-3007561-761 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(8-苯基萘-1-基)苯基)二苯并[b,d]呋喃-1-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(8-phenylnaphthalen-1-yl)phenyl)dibenzo[b,d]furan-1-amine	3007561-76-1C₅₈H₃₈N₂O778.95	需询价	价格库存
KL-2919007-626 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(6-苯基萘-2-基)苯基)-[1,1'-联苯]-3-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(6-phenylnaphthalen-2-yl)phenyl)-[1,1'-biphenyl]-3-amine	2919007-62-6C₅₈H₄₀N₂764.97	需询价	价格库存
KL-3061599-150 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(7-苯基菲-9-基)苯基)-[1,1'-联苯]-2-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(7-phenylphenanthren-9-yl)phenyl)-[1,1'-biphenyl]-2-amine	3061599-15-0C₆₂H₄₂N₂815.03	需询价	价格库存
KL-3086057-851 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(喹唑啉-5-基)苯基)二苯并[b,d]噻吩-3-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(quinazolin-5-yl)phenyl)dibenzo[b,d]thiophen-3-amine	3086057-85-1C₅₀H₃₂N₄S720.89	需询价	价格库存
KL-1852484-764 N-(4'-(9H-咔唑-9-基)-[1,1'-联苯]-4-基)-N-(4-(二苯并[b,d]呋喃-4-基)苯基)-9,9-二苯基-9H-芴-4-胺 N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(dibenzo[b,d]furan-4-yl)phenyl)-9,9-diphenyl-9H-fluoren-4-amine	1852484-76-4C₆₇H₄₄N₂O893.1	需询价	价格库存