Agent Name

Rhodamine 640 perchlorate

CAS Number

72102-91-1

Formula

C32-H31-N2-O3.Cl-O4

Major Category

Dyes

Synonyms

Rhodamine 640 perchlorate; 1H,5H,11H,15H-Xantheno(2,3,4-ij:5,6,7-i'j')diquinolizin-18-ium, 9-(2-carboxyphenyl)-2,3,6,7,12,13,16,17-octahydro-, perchlorate; 9-(2-Carboxyphenyl)-2,3,6,7,12,13,16,17-octahydro-1H,5H,11H,15H-xantheno(2,3,4-ij:5,6,7-i'j') diquinolizin-18-ium perchlorate; [ChemIDplus]

Category

Rhodamine Dyes

Description

Odorless, dark green crystals with a bronze sheen; [MSDSonline]

Sources/Uses

Rhodamine 101 has a very similar structure to Rhodamine 640, which is used as a laser dye. "Laser dyes include a large number of long-known fluorescent compounds such as Rhodamine 6 G. Other representatives are optical brighteners and fluorescent dyes from the large chemical companies (e.g., Bayer, CIBA-Geigy, Hoechst, Eastman Kodak)." [Ullmann: Laser Dyes] Rhodamine dyes (aminoxanthenes) are xanthene dyes that are very important commercially. They are brilliant, blue-red, fluorescent dyes used as colorants in inks, paper, and plastics. Sulfonated derivatives are used as wool and polyamide dyes. Red fluorescent pigments are produced from Rhodamine dyes, and some of these are used as laser dyes. [Ullmann: Fluorescent Dyes]

Comments

May cause eye irritation; Low ingestion hazard; [MSDSonline] See "PERCHLORATES."

Exposure Assessment
Explanatory Notes

Negligible VP; mp = 200-210 deg C; [MSDSonline]

Adverse Effects
Methemoglobinemia

Methemoglobinemia, Secondary

Links to Other NLM Databases
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Chemical Information

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Other Information

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