High Purity Phenol Red 143-74-8 Factory Supply

• Customization: Available
• CAS No.: 143-74-8
• Formula: C19h14o5s
• Model NO.: IND
• EINECS: 205-609-7
• Classification: Organic Analytical Reagents
• Grade: Ind
• Specific Usage: For Biological Purpose
• Content: Ind
• Usage: Laboratory Reagents
• Source: Concrete
• Habit Appellation: Special Reagent
• Application: Scientific Research
• Property: Biochemical Reagent
• Molecular Weight: 354.4
• Melting Point: 1.5±0.1 g/cm3
• Boiling Point: 562.8±50.0 °c at 760 Mmhg
• Storage Condition: Store at Rt.
• Transport Package: 25 Kgs Fiber Drums
• Trademark: Sinochembt
• Origin: Shenyang
• HS Code: 3204901000
• Production Capacity: 500kgs Per Month

Product Description

pHVisual transition interval            1.2(Orange)-3.0(Yellow)          
(nm)Maximum absorpti-
on wavelength        6.5(Brown yellw)-8.0(Purple)
λ1(pH 1.2)                                   503-506
λ2(pH 3.0)                                   430-435
λ3(pH 6.5)                                   430-435
λ4(pH 8.0)                                   557-560
Mass absorptivity,L/(cm.g)
α1(λ1,(pH 1.2,)                         110-123
α2(λ2,(pH 3.0,)                         60-68
α3(λ3,(pH 6.5,)                         62-72
α4(λ4,(pH 8.0,)                         120-135
Solubility in alkali                 PASS
Drying loss,%                         ≤1.0
Ignition residue,%         ≤0.2