m – Cresol Purple, cas no.: 2303-01-7 manufacturer in China. Bulk quantity can be offered by factory production, small quantity size can be offered by laboratory production.
| PRODUCT DETAILS | |
| BASIC INFO | |
| CAS NO.: | 2303-01-7 |
| Prdocut Code: | MCR07 |
| Synonyms: | m-Cresolsulfonphthalein; m-Cresolpurpl; cresolsulfonphthalein; 3-cresolpurple; M-CRESOLSULFONPHTHALEIN; BETZ 0420; m-Cresol purpl; Metacresol Purple; pourpredem-cresol; METACRESOL PURPLE; 3,3-Bis(4-hydroxy-2-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide; M-CRESOLSULFONEPHTHALEIN; |
| Formula: | C21H18O5S |
| Molecular Weight: | 382.43 |
| PROPERTIES | |
| Appearance: | Green Crystalling Powder |
| Density: | 1.404 g/cm3 |
| Boiling Point: | 577.5ºC at 760 mmHg |
| Stability: | Stable |
| SAFTY INFO | |
| Safety Statements: | S24/25 |
| HS Code: | 3822009000 |
| USE&STORAGE | |
| Use: | It is used as a pH indicator or dye. |
| Storage: | Store at RT. |
| COA | |
| Appearance | Green Crystalline Powder |
| PH Change Range | 3.8 (Pink) - 5.4 (Yellow) |
| Mass Absorption Wavelength (nm) | λ1 (PH 1.2): 526 - 529 |
| λ2 (PH 2.8): 431 - 437 | |
| λ3 (PH 7.4): 431 - 437 | |
| λ4 (PH 9.0): 576 - 580 | |
| Mass Absorption Coefficient (L/ cm. g) | α1（λ1, PH 1.2, dry sample）80-94 |
| α2（λ2, PH 2.8, dry sample）40-46 | |
| α3（λ3, PH 7.4, dry sample）39-45 | |
| α4（λ4, PH 9.0, dry sample）75-86 | |
| Ethanol Dissolution | Passed |
| Loss on Drying | ≤ 1.0% |
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