Cresol Purple
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| Post Date: | Aug 01,2014 |
| Expiry Date: | Aug 01,2015 |
| Detailed Description: |
Cas No. :2303-01-7
Quantity: 200Kilograms Payment Method: TT, L/C, D/A, D/P, Western Union, Paypal 1. CAS NO.: 2303-01-7 2. Molecular Formula: C21H18O5S 3. Molecular Weight: 382.44 4. Storage: Keep in dry ventilated place with sealed. 5. Use: PH indicator. ITEM Appearance Green brown or brown powder Flash Point 205.3 °C PH Change Range 1.2 ( pink ) - 2.8 ( yellow ) 7.4 (brown yellow) - 9.0 ( purple ) Mass Absorption Wavelength L/ (cm.g): λ1 (PH 1.2): 526 ~529 nm λ2 (PH 2.8): 431 ~ 437 nm λ3 (PH 7.4): 431 ~ 437 nm λ4 (PH 9.0): 576 ~ 580 nm Mass Absorption Coefficient L/ (cm.g): α1(λ1,PH 1.2)80-94 α2(λ2,PH 2.8)40-46 α3(λ3,PH 7.4)39-45 α4(λ4,PH 9.0)75-86 Loss on Drying ≤ 1.0% |
| CAS Registry Number: | 2303-01-7 |
| Synonyms: | ;4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(3-methylphenol);phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methyl-;2-[(Z)-(4-hydroxy-2-methylphenyl)(2-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonic acid;3,3-bis(4-hydroxy-2-methylphenyl)-2-benzofuran-1(3H)-one; |
| Molecular Formula: | C22H18O4 |
| Molecular Weight: | 346.3759 |
| Molecular Structure: | 
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| Safety Description: | S24/25:; |
| Company: | Tianjin Evision Technology [ China ] |
| Contact: | Anny Chu |
| Tel: | +86-22-29894595 |
| Fax: | +86-22-29898890 |
| Email: | tjdcfinechem@gmail.com |
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