ChemicalBook > CAS DataBase List > 5'(6)-FAM

5'(6)-FAM

Product Name
5'(6)-FAM
CAS No.
204697-37-0
Chemical Name
5'(6)-FAM
Synonyms
5'(6)-FAM;5'-(6-FAM) CEP;5'-FAM Amidite;5'-Fluorescein CEP;FAM-Phosphoramidite;6-FAM-phosphoramidite;6-Fluorescein amidite;5'-6-FAM-PhosphoraMidite;6-FAM CE Phosphoramidite;Fluorescein Phosphoramidite
CBNumber
CB1726477
Molecular Formula
C46H58N3O10P
Formula Weight
843.94
MOL File
204697-37-0.mol
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5'(6)-FAM Property

Boiling point:
850.6±65.0 °C(Predicted)
storage temp. 
-20°C
solubility 
acetonitrile: soluble 0.1M, clear, colorless to faintly yellow (liquid)
pka
14.56±0.20(Predicted)
color 
solid white to off-white
Appearance
off-white solid
InChIKey
MGPYJVWEJNTXLC-UHFFFAOYSA-N
SMILES
C12(C3=C(C=C(OC(=O)C(C)(C)C)C=C3)OC3=C1C=CC(OC(=O)C(C)(C)C)=C3)C1=C(C=CC(C(=O)NCCCCCCOP(N(C(C)C)C(C)C)OCCC#N)=C1)C(=O)O2
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Safety

WGK Germany 
3
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
M041130
Product name
6-Fluorescein Phosphoramidite
Purity
configured for ABI
Packaging
0.1g
Price
$135
Updated
2025/07/31
Sigma-Aldrich
Product number
M041130
Product name
6-Fluorescein Phosphoramidite
Purity
configured for ABI
Packaging
0.25g
Price
$570
Updated
2025/07/31
Sigma-Aldrich
Product number
M041180
Product name
6-Fluorescein Phosphoramidite
Purity
configured for PerkinElmer, configured for Polygen
Packaging
0.1g
Price
$142
Updated
2025/07/31
American Custom Chemicals Corporation
Product number
FRL0002126
Product name
6-FAM AMIDITE
Purity
95.00%
Packaging
5MG
Price
$499.08
Updated
2021/12/16
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5'(6)-FAM Chemical Properties,Usage,Production

Description

FAM (fluorescein) phosphoramidite 6-isomer is specifically designed for incorporation at the 5′-end of oligonucleotides, which is essential for many biochemical assays and applications. It is primarily utilized for labeling oligonucleotides, enhancing their visibility in various assays such as PCR, sequencing and hybridization studies. It is commonly employed in real-time PCR assays where fluorescent signals are monitored during amplification. The incorporation of FAM at the 5′-end allows for efficient monitoring of the reaction progress through fluorescence.


FAM emits fluorescence with a maximal emission wavelength around 517 nm, which is ideal for various detection methods. It can be quenched by agents like DusQ 1 or DABCYL, allowing for applications in assays that require precise control over fluorescence signals.


Internal sequence additions can be achieved using modified nucleotides such as FAM-dT phosphoramidite, allowing for flexible design of probes with multiple fluorescent tags while maintaining effective spacing. However, it is essential to include spacers between the labels to prevent self-quenching of fluorescence signals, which can occur due to close proximity.


The dye soluble in common organic solvents such as acetonitrile, DCM, DMF, DMSO. Once conjugated to biomolecules, the resulting FAM conjugates can be used in aqueous applications.

Chemical Properties

5'-Fluorescein phosphoramidate is soluble in common organic solvents such as acetonitrile, DCM, DMF, and DMSO. After conjugation with biomolecules, the resulting FAM conjugates can be used in aqueous applications.

Uses

6-Fluorescein phosphoramidite is a potent fluorescent dye. 6-Fluorescein phosphoramidite can be used to label oligonucleotides[1].

References

[1] Lietard J, et al. Sequence-dependent quenching of fluorescein fluorescence on single-stranded and double-stranded DNA. RSC Adv. 2022 Feb 16;12(9):5629-5637. DOI:10.1039/d2ra00534d

Abs/Em Maxima

492/517 nm

Fluoresene quantum yield

0.93

Extinction Coefficient

74000

CF260

0.22

CF280

0.17

5'(6)-FAM Preparation Products And Raw materials

Raw materials

Preparation Products

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5'(6)-FAM Suppliers

Gagri Global IT Services Pvt. Ltd.
Tel
--
Fax
--
Email
info@sapalaorganics.com
Country
India
ProdList
1321
Advantage
58
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View Lastest Price from 5'(6)-FAM manufacturers

Henan Aochuang Chemical Co.,Ltd.
Product
6-Fluorescein phosphoramidite 204697-37-0
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
1Ton
Release date
2022-09-23

204697-37-0, 5'(6)-FAMRelated Search:


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  • 5'-Fluoresceinaminophosphate
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  • 6-Fluorescein Phosphoramidite (6-FAM)
  • 204697-37-0
  • C46H58N3O10P
  • Other Fluorescent Conjugates
  • Fluorescent Conjugates
  • Fluorescent Probes, Labels, Particles and Stains
  • Modifiers
  • Sigma-Proligo
  • FLUOROPHORES
  • FAM