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Fluorescein-Natrium (Uranin) 250g

Marsoni M251S
Sale price$142.91
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Fluorescein-Natrium (Uranin) 250gFluorescein Natriumsalz Internationale Bezeichnung: Uranin Chemische Formel: C20H10Na2O5 Molare Masse: 376,27 g mol CAS Nummer: 518 47 8 EC Nummer: 208 253 0 Technische Daten Physikalische Form: Pulver Farbe: dunkelgrn oder orange gelb (hellgrne Fluoreszenz) Geruch: geruchlos Schmelzpunkt: ca. 320C (Zersetzung) Lslichkeit in Wasser: sehr gut lslich pH Wert (wssrige Lsung): ca. 6 9 (je nach Konzentration) Schttdichte: keine Daten verfgbar
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4.4 ★★★★★
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dionne
Cuba, US
★★★★★ 5
Glasses
Color: Dark Tortoise, Size: 54/17/140
It’s beautiful I like the glasses wonderful
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2026
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Verified Purchase
Dina P.
Battle Creek, US
★★★★★ 1
Glassws are too wide
Color: Dark Tortoise, Size: 54/17/140
Glasses are tood wide. No one have been able to ajust these. Up to now I have not been able to wear them. I don't recommend these.
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Reviewed in the United States on March 29, 2026
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Verified Purchase
LILIA ROSA CARDENAS NUÑEZ
Port Orchard, US
★★★★★ 5
divinas mis gafas
Color: Porcini Tortoise, Size: 52-17-140
divinas
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Reviewed in the United States on April 17, 2026
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Verified Purchase
lojo
Port Orchard, US
★★★★★ 4
Cute but not hinged at arms
Color: Porcini Tortoise, Size: 52-17-140
They were cute. I didn’t like that they weren’t hinged. They were harder to open and close. I didn’t look for this feature before I purchased.
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Reviewed in the United States on February 3, 2026
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Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 5
Anteojos modernos.
Color: Blush Tortoise, Size: Lens-52 Bridge-17 B-37.5 ED-56.1 Temple-140, Color: Blush Tortoise, Size: Lens-52 Bridge-17 B-37.5 ED-56.1 Temple-140
Mis lentes son muy cómodos, y me gustan como lucen, vienen sin medidas yo los adecué con mi Optometrista. Se aflojan con el tiempo, pero compré una pinza que ajusta los tornillos…realmente lucen como nuevos.
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Reviewed in the United States on January 20, 2026

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