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ChemicalBook >> CAS DataBase List >> (S)-2-(9H-FLUOREN-9-YLMETHOXYCARBONYLAMINO)-4,4-DIFLUORO-BUTYRIC ACID

(S)-2-(9H-FLUOREN-9-YLMETHOXYCARBONYLAMINO)-4,4-DIFLUORO-BUTYRIC ACID

(S)-2-(9H-FLUOREN-9-YLMETHOXYCARBONYLAMINO)-4,4-DIFLUORO-BUTYRIC ACID price.
  • $29 - $6880
  • Product name: (S)-2-(9H-FLUOREN-9-YLMETHOXYCARBONYLAMINO)-4,4-DIFLUORO-BUTYRIC ACID
  • CAS: 467442-21-3
  • MF: C19H17F2NO4
  • MW: 361.34
  • EINECS:
  • MDL Number:MFCD06796145
  • Synonyms:(S)-2-(9H-FLUOREN-9-YLMETHOXYCARBONYLAMINO)-4,4-DIFLUORO-BUTYRIC ACID;Butanoic acid, 2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-, (2S)-;(2S)-2-{[(9H-Fluoren-9-ylmethoxy)carbonyl]amino}-4,4-difluorobutanoic acid;(9H-Fluoren-9-yl)MethOxy]Carbonyl (S)-2-Amino-4,4-difluorobutyric acid;Fmoc-L-DfAbu-OH;Fmoc-(S)-2-amino-4,4-difluorobutanoic acid;(S)-2-(Fmoc-amino)-4,4-difluorobutanoic Acid;Fmoc-L-3-difluoromethylAla-OH
Price61 Properties Safety Information Description
61 prices
Selected condition：
Brand
  • aablocks
  • ACHEMBLOCK
  • Acrotein
  • AK Scientific
  • Apolloscientific
  • Chem-Impex
  • Crysdot
  • Iris Biotech GmbH
  • J&W Pharmlab
  • Matrix Scientific
  • SynQuest Laboratories
  • Synthonix
  • TRC
  • Usbiological
Package
  • 5mg
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  • 250.00mg
  • 500mg
  • 0.5g
  • 1.00g
  • 1G
  • 5g
  • 5.00g
  • 10g
  • Manufactureraablocks
  • Product numberAA00DFH6
  • Product descriptionButanoic acid, 2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-, (2S)- 96%
  • Packaging100mg
  • Price$29
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DFH6
  • Product descriptionButanoic acid, 2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-, (2S)- 96%
  • Packaging250mg
  • Price$71
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DFH6
  • Product descriptionButanoic acid, 2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-, (2S)- 98%
  • Packaging5g
  • Price$852
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DFH6
  • Product descriptionButanoic acid, 2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-, (2S)- 98%
  • Packaging10g
  • Price$1658
  • Updated2026-05-28
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberV143851
  • Product description(2S)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4,4-difluorobutanoic acid 97%
  • Packaging5G
  • Price$775
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberV143851
  • Product description(2S)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4,4-difluorobutanoic acid 97%
  • Packaging1G
  • Price$240
  • Updated2026-05-27
  • Buy
  • ManufacturerAcrotein
  • Product numberNA-4022
  • Product descriptionFmoc-(S)-2-amino-4,4-difluorobutanoic acid 97%
  • Packaging0.5g
  • Price$205.33
  • Updated2026-05-25
  • Buy
  • ManufacturerAcrotein
  • Product numberNA-4022
  • Product descriptionFmoc-(S)-2-amino-4,4-difluorobutanoic acid 97%
  • Packaging1g
  • Price$308
  • Updated2026-05-25
  • Buy
  • ManufacturerAcrotein
  • Product numberNA-4022
  • Product descriptionFmoc-(S)-2-amino-4,4-difluorobutanoic acid 97%
  • Packaging5g
  • Price$1089.9
  • Updated2026-05-25
  • Buy
  • ManufacturerAK Scientific
  • Product number4405AH
  • Product description(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyricacid
  • Packaging250mg
  • Price$928
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product number4405AH
  • Product description(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyricacid
  • Packaging100mg
  • Price$489
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberPC27883
  • Product description(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96%
  • Packaging1g
  • Price$429
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberPC27883
  • Product description(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96%
  • Packaging1g
  • Price$429
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberPC27883
  • Product description(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96%
  • Packaging100mg
  • Price$45
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberPC27883
  • Product description(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96%
  • Packaging100mg
  • Price$45
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberPC27883
  • Product description(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96%
  • Packaging250mg
  • Price$111
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00DFH6 Butanoic acid, 2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-, (2S)- 96% 100mg $29 2026-05-28 Buy
aablocks AA00DFH6 Butanoic acid, 2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-, (2S)- 96% 250mg $71 2026-05-28 Buy
aablocks AA00DFH6 Butanoic acid, 2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-, (2S)- 98% 5g $852 2026-05-28 Buy
aablocks AA00DFH6 Butanoic acid, 2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluoro-, (2S)- 98% 10g $1658 2026-05-28 Buy
ACHEMBLOCK V143851 (2S)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4,4-difluorobutanoic acid 97% 5G $775 2026-05-27 Buy
ACHEMBLOCK V143851 (2S)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4,4-difluorobutanoic acid 97% 1G $240 2026-05-27 Buy
Acrotein NA-4022 Fmoc-(S)-2-amino-4,4-difluorobutanoic acid 97% 0.5g $205.33 2026-05-25 Buy
Acrotein NA-4022 Fmoc-(S)-2-amino-4,4-difluorobutanoic acid 97% 1g $308 2026-05-25 Buy
Acrotein NA-4022 Fmoc-(S)-2-amino-4,4-difluorobutanoic acid 97% 5g $1089.9 2026-05-25 Buy
AK Scientific 4405AH (S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyricacid 250mg $928 2021-12-16 Buy
AK Scientific 4405AH (S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyricacid 100mg $489 2021-12-16 Buy
Apolloscientific PC27883 (S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96% 1g $429 2026-06-04 Buy
Apolloscientific PC27883 (S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96% 1g $429 2026-06-04 Buy
Apolloscientific PC27883 (S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96% 100mg $45 2026-06-04 Buy
Apolloscientific PC27883 (S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96% 100mg $45 2026-06-04 Buy
Apolloscientific PC27883 (S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-4,4-difluoro-butyric acid 96% 250mg $111 2026-06-04 Buy
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Properties

Boiling point :561.8±50.0 °C(Predicted)
Density :1.335±0.06 g/cm3(Predicted)
storage temp. :Store at room temperature
solubility :DMF (Slightly), DMSO (Slightly), Methanol (Slightly)
pka :3.37±0.10(Predicted)
form :Solid
color :White to Off-White
Stability :Hygroscopic

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P330 Rinse mouth.
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P337+P313 IF eye irritation persists: Get medical advice/attention.
P362 Take off contaminated clothing and wash before reuse.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P501 Dispose of contents/container to..…

Description

(2S)-2-[[(9H-Fluoren-9-ylmethoxy)carbonyl]amino]-4,4-difluorobutanoic Acid is used in the preparation of peptide inhibitors of hepatitis C virus NS3 protease.

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Suppliers and manufacturers

GL Biochem (Shanghai) Ltd.
Suzhou ARTK Medchem Co., Ltd. Chemsky（shanghai）International Co.,Ltd. Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. JW & Y Pharmlab Co., Ltd. Wuxi Asia Peptide Biotechnology Limited Company Amatek Scientific Co. Ltd. Shanghai WangFa Chemical Technology Co., Ltd. Bejing Famous Pharmaceutical Technology Co., Ltd. Shanghai zhigan biotechnology co., LTD