N-(9-Fluorenylmethoxycarbonyl)-L-cysteine - ≥96% , CAS No.135248-89-4

CAS: 135248-89-4 Cat. No.: F181255 Molecular Weight: 343.4
AVAILABLE TO ORDER
GRADE & PURITY ≥96%
Synonyms
Cysteine, N-[(9H-fluoren-9-ylmethoxy)carbonyl]- | (((9H-Fluoren-9-yl)methoxy)carbonyl)-L-cysteine | FMOC-CYS-OH | fmoc-cysteine | FD21248 | SCHEMBL14537499 | PD197198 | C18H17NO4S | N-Fmoc-L-cysteine | (2R)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-sulfan
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
F181255-250mg
3

$12.90

$19.90
Save $7.00 (35.18%)
1g
F181255-1g
3

$16.90

$25.90
Save $9.00 (34.75%)
5g
F181255-5g
2

$73.90

$110.90
Save $37.00 (33.36%)
25g
F181255-25g
2

$287.90

$431.90
Save $144.00 (33.34%)
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Why this grade

≥96% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Cysteine, N-[(9H-fluoren-9-ylmethoxy)carbonyl]- | (((9H-Fluoren-9-yl)methoxy)carbonyl)-L-cysteine | FMOC-CYS-OH | fmoc-cysteine | FD21248 | SCHEMBL14537499 | PD197198 | C18H17NO4S | N-Fmoc-L-cysteine | (2R)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-sulfan
Specifications & Purity
≥96%
Storage
Room temperature
Shipped In
Normal
Purity
≥96%
Names and Identifiers
Pubchem Sid504765902
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504765902
Canonical SmilesC1=CC=C2C(=C1)C(C3=CC=CC=C32)COC(=O)NC(CS)C(=O)O
IUPAC Name(2R)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-sulfanylpropanoic acid
InChIKeyRMTDKXQYAKLQKF-INIZCTEOSA-N
INCHI1S/C18H17NO4S/c20-17(21)16(10-24)19-18(22)23-9-15-13-7-3-1-5-11(13)12-6-2-4-8-14(12)15/h1-8,15-16,24H,9-10H2,(H,19,22)(H,20,21)/t16-/m0/s1
Isomeric SMILES C1=CC=C2C(=C1)C(C3=CC=CC=C32)COC(=O)N[C@@H](CS)C(=O)O
Molecular Weight 343.4
Reaxy-Rn 10369294
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=10369294&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassFluorenes
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentFluorenes
Alternative Parents Cysteine and derivatives  Carbamate esters  Monocarboxylic acids and derivatives  Carboxylic acids  Alkylthiols  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic homopolycyclic compounds
Substituents Fluorene - Cysteine or derivatives - Alpha-amino acid or derivatives - Carbamic acid ester - Alkylthiol - Carboxylic acid derivative - Carboxylic acid - Monocarboxylic acid or derivatives - Organic nitrogen compound - Organonitrogen compound - Organooxygen compound - Organosulfur compound - Hydrocarbon derivative - Organic oxide - Carbonyl group - Organic oxygen compound - Aromatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as fluorenes. These are compounds containing a fluorene moiety, which consists of two benzene rings connected through either a cyclopentane, cyclopentene, or cyclopenta-1,3-diene.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

6 results found

Lot NumberCertificate TypeDateItem
I2201474Certificate of AnalysisJun 11, 2026 F181255
I2201490Certificate of AnalysisJun 11, 2026 F181255
G2213559Certificate of AnalysisApr 07, 2026 F181255
K2103490Certificate of AnalysisAug 11, 2025 F181255
K2103491Certificate of AnalysisAug 11, 2025 F181255
I2412048Certificate of AnalysisJun 29, 2022 F181255
Chemical and Physical Properties
Molecular Weight343.400 g/mol
XLogP33.000
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count5
Rotatable Bond Count6
Exact Mass343.088 Da
Monoisotopic Mass343.088 Da
Topological Polar Surface Area76.600 Ų
Heavy Atom Count24
Formal Charge0
Complexity450.000
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
Reviews

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