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CAS:143-74-8
Molecular Formula:C19H14O5S
Molecular Weight:354.38
Appearance:Red Powder
EINECS:205-609-7
Synonyms:NR3C3;nuclear receptor 3C3;PRGR;Phenol red (phenolsulfonphthalein) Reag. Ph Eur.;Phenol Red, Pure;3,3-bis(p-Hydroxyphenyl)-3H-2,1-benzoxathiol-1,1-dioxide;Phenol re;3,3-bis(4-hydroxyphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide;Phenol Red Solution 0.5%;Phenolsulfonphthalein indicator solution;Phenolsulfonphthalein indicator liquid (for microbial limit inspection);Phenol red, AR;2,4,6-Trimethylheptan-4-ol;PHENOL RED FREE ACID;PHENOL RED INDICATOR, REAG. ACS;PHENOL RED 0.5% SOLUTION IN DULBECCO’S*P HOSPHATE BU
What is Phenol Red
Phenol red, also known as phenol red, is a dark red crystalline powder with a molecular weight of 354.38 and a CAS number of 143-74-8. Soluble in water, alcohol, acetone, almost insoluble in ether and chloroform. It is crimson when dissolved in alkali hydroxide or Chemicalbook carbonate alkali solution, stable in the air, and can be used as identification medium in microbial culture; acid-base indicator; blood carbon dioxide full measurement; preparation of disaccharide iron urea in bacterial serum test Media indicators, etc.
Specification
| ITEM | STANDARD | RESULT |
| PH transition interval | 1.2 (Orange) – – -3.0 (Yellow)
6.5 (Brown) – -8.0 (Purple) |
1.2 (Orange) – – -3.0 (Yellow)
6.5 (Brown) – -8.0 (Purple) |
| Maximum absorption wavelength (nm)
λ1(PH1.2) λ2(PH 3.0) λ3(PH 6.5) λ4(PH 8.0) |
503—506 430—435 430—435 557—560 |
503 431 432 557 |
| Mass absorption factor
(L / cm·g) α1 (λ1,PH1.2,Dry sample) α2 (λ2,PH 3.0,Dry sample) α3 (λ3,PH 6.5,Dry sample) α4 (λ4,PH 8.0,Dry sample) |
110–123 60—68 62—72 115-130 |
112 63 65 115 |
| 5 Alkaline dissolution test | Complies | Complies |
| Loss on drying | ≦1.0 | 0.8 |
| Burburn residue
(in sulfate) |
≦0.2 | 0.2 |
Application
It is used as a raw material for the production of phenolic resin, capron and adipic acid, and is also used in the plastics and pharmaceutical industries. Acid-base indicator; full blood carbon dioxide determination; indicator for preparing disaccharide iron urea medium in bacterial serum test, etc.
Package
25kgs/drum or according to customer requirements and keep it away from light at a tempreature below 25 degree.
Related keywords
PHENOL REDRESEARCH GRADE;A-HYDROXY-A A-BIS(P-HYDROXYPHENYL)-O-TOLUENESULFONIC ACID G-SULTONE;3,3-BIS(P-HYDROXYPHENYL)-2,1-3H-BENZOXATHIOLE;SULFONAPHTHAL;TIMTEC-BB SBB006473;PR;PHENOSULFOHEPHTHALEIN INDICATOR;PHENOLSULFONPHTHALEIN;PHENOLSULFONEPHTHALEIN
