FLUORESCEIN Indicator grade |
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HomeLaboratory ChemicalsAdsorption Indicators |
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SYNONYMS : RESORCINOLPHTHALEIN, C.I. 45350, SOLVENT YELLOW 94, D & C YELLOW NO. 7, ANGIOFLUOR, JAPAN YELLOW 201, SOAP YELLOW |
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Article No. |
03855 |
Grade |
Indicator grade |
Purity |
95% |
CAS No. |
2321-07-5 |
Molecular Formula |
C20H12O5 |
Molecular Weight |
332.31 |
H.S. Code |
3204.1200 |
Shelf Life |
5 Years |
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C.I.No.45350 |
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Specifications |
Appearance |
Orange red brown or maroon powder |
Assay (on dried substances) |
Min 95% |
Solubility (in 1N NaOH) |
50 mg/ml |
Molar Absorptivity E(490 /-2nm) |
Min 70000 |
E(284 /-2nm) |
Min 12000 |
E(238 /-2nm) |
Min 39000 |
Loss on drying (at 105 °C) |
Max 5.0% |
Melting point |
About 315 °C |
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Packings |
00025 25 g |
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00100 100 g |
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01000 1000 g |
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Safety Information
and Hazard Symbols |
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Symbol: GHS07 Signal Word: Warning Hazardous Statement: H319 Precaution Statement: P305 P351 P338 |
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Revision Date
: 23-Dec-2013 |
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