1.11748
Phenol red sodium salt
pH indicator, ACS
Synonym(s):
Phenol red sodium salt
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About This Item
Product Name
Phenol red sodium salt, indicator ACS
grade
ACS reagent
Quality Level
loss
≤8.0% loss on drying, 110°C
visual transition interval
1.2-3.0, brown-orange to yellow(1st transition range), 6.5-8, brownish-yellow to red-violet(2nd transition range)
mp
285 °C
storage temp.
2-30°C
SMILES string
[Na+].[S]1(=O)(=O)OC(c4c1cccc4)(c3ccc(cc3)[O-])c2ccc(cc2)O
InChI
1S/C19H14O5S.Na/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-1-2-4-18(17)25(22,23)24-19;/h1-12,20-21H;/q;+1/p-1
InChI key
HKHYOKBQJILTEI-UHFFFAOYSA-M
Analysis Note
2nd transition range: pH 6.5 - pH 8.0brownish yellow - red violet
Appearance of solution: passes test
Loss on drying (110 °C): ≤ 8.0 %
Transition range (according to ACS): passes test
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signalword
Warning
hcodes
Hazard Classifications
Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 1117480005 | 04022536135571 |