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CAS-Number: | 136977-42-9 |
---|---|
Molecular Weight: | 527,5 |
Empirical Formula: | C29H25N3O7 |
Absorption [nm]: | 548 ± 3 |
Emission [nm]: | 570 ± 3 |
Quality Control: | ≥ 90 % (by HPLC at 240 nm) |
ε [M-1 cm-1]: | >78 000 |
Buffer System for Optical Spectroscopy: | PBS, pH 7.4 |
Solubility: | Acetonitril, DMF, DMSO |
Appearance (colour): | Violet |
Appearance (form): | Solid (powder) |
Storage: | - 20 °C. Keep dry! Keep away from light, especially in solution! |
Trade name: | 6-Carboxytetramethylrhodamine, succinimidylester, single isomer; 6-TAMRA SE; 6-TAMRA succinimidyl ester, single isomer |
Reactive Moiety: | NHS ester, reacts with amines to form a stable amide linkage |
6-Carboxytetramethylrhodamine (6-TAMRA or 6-Carboxy-TMR) is a bright, photostable orange-red fluorescent dye with excitation/emission maxima of 543/572 nm. It has a high quantum yield, is compatible with rhodamine filter sets, and is optimally excited by 532 nm or 546 nm laser lines. Widely used for labeling peptides, proteins, nucleotides, and nucleic acids, it is ideal for fluorescence microscopy, flow cytometry, and sequencing.
This NHS- (succinimidyl-, SE) activated derivative enables covalent modification of primary and secondary amino groups in peptides, proteins, amino-modified nucleotides, and other amine-containing biomolecules, yielding stable amide bonds. The product is provided as single isomers.

Hazard Classifications
Skin irritation, Category 2 (Skin Irrit. 2)
Eye irritation, Category 2 (Eye Irrit. 2)
Specific target organ toxicity - single exposure, Category 3 (STOT SE 3)
Hazard Statements
H315 | Causes skin irritation. |
H319 | Causes serious eye irritation. |
H335 | May cause respiratory irritation. |
Precautionairy Statements
P261 | Avoid breathing dust/fume/gas/mist/vapours/spray. |
P262 | Do not get in eyes, on skin, or on clothing. |
P280 | Wear protective gloves/protective clothing/eye protection/face protection. |
P302+P352 | IF ON SKIN: Wash with plenty of water/… |
P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
Signal Word
Warning
WGK
WGK 3
Storage Class Code
11 - Flammable solids
ADR, RID (road and railroad)
Not dangerous goods
IATA-DGR (transport by air)
Not dangerous goods
IMDG-Code (transport by sea)
Not dangerous goods

Gefahreneinstufungen
Ätz-/Reizwirkung auf die Haut, Kategorie 2 (Skin Irrit. 2)
Schwere Augenschädigung/Augenreizung, Kategorie 2 (Eye Irrit. 2)
Spezifische Zielorgan-Toxizität (einmalige Exposition), Kategorie 3 (STOT SE 3)
Gefahrenhinweise - H-Sätze
H315 | Verursacht Hautreizungen. |
H319 | Verursacht schwere Augenreizung. |
H335 | Kann die Atemwege reizen. |
Sicherheitshinweise - P-Sätze
P261 | Einatmen von Staub/Rauch/Gas/Nebel/Dampf/Aerosol vermeiden. |
P262 | Nicht in die Augen, auf die Haut oder auf die Kleidung gelangen lassen. |
P280 | Schutzhandschuhe/Schutzkleidung/Augenschutz/Gesichtsschutz/Gehörschutz/… tragen. |
P302+P352 | BEI BERÜHRUNG MIT DER HAUT: Mit viel Wasser/… waschen. |
P305+P351+P338 | BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen. |
Signalwort
Achtung
WGK
WGK 3
Lagerklasse
11 - Entzündbare Feststoffe
ADR, RID (Strasse und Eisenbahn)
Kein Gefahrgut
IATA-DGR (Luftverkehr)
Kein Gefahrgut
IMDG (Seeschiffverkehr)
Kein Gefahrgut