CAS Number145-50-6
SynonymsA-NAPHTHOLBENZEIN; Alpha-Naphtholbenzein; 4-(α-(4-Hydroxy-1-naphthyl)benzylidene)naphthalen-1(4H)-one; P-NAPHTHOLBENZEIN TS; (E)-4-((4-hydroxynaphthalen-1-yl)(phenyl)methylene)naphthalen-1(4H)-one; 1-NAPHTHOLBENZEIN; P-NAPTHOLBENZEIN; α-Naphtholbenzein; (4E)-4-[(4-Hydroxy-1-naphthyl)(phenyl)methylene]-1(4H)-naphthalenone; MFCD00078492; EINECS 230-116-9
Molecular FormulaC27H18O2
Molecular Weight374.43
Purity98.00%
Density1.3±0.1 g/cm3
Boiling Point578.6±50.0 °C at 760 mmHg
Melting Point230-235 °C (lit.)
Appearancepowder
EINECS205-656-3
Symbol
Signal WordWarning
| Chemical & Physical Properties | |
|---|---|
| CAS Number | 145-50-6 |
| Catalog No. | 2A-9020961 |
| Chinese Name | α-萘酚醌苯基甲烷 |
| Synonyms | A-NAPHTHOLBENZEIN; Alpha-Naphtholbenzein; 4-(α-(4-Hydroxy-1-naphthyl)benzylidene)naphthalen-1(4H)-one; P-NAPHTHOLBENZEIN TS; (E)-4-((4-hydroxynaphthalen-1-yl)(phenyl)methylene)naphthalen-1(4H)-one; 1-NAPHTHOLBENZEIN; P-NAPTHOLBENZEIN; α-Naphtholbenzein; (4E)-4-[(4-Hydroxy-1-naphthyl)(phenyl)methylene]-1(4H)-naphthalenone; MFCD00078492; EINECS 230-116-9 |
| Molecular Formula | C27H18O2 |
| Molecular Weight | 374.43 |
| Purity | 98.00 |
| Density | 1.3±0.1 g/cm3 |
| Boiling Point | 578.6±50.0 °C at 760 mmHg |
| Melting Point | 230-235 °C (lit.) |
| Appearance | powder |
| Water Solubility | insoluble |
| Storage Condition | Store in a dry and cool place. |
| Application | Alpha-naphthoquinone (p-naphthoquinone) is a dye. Alpha-naphthoquinone can be used as a pH indicator. α-Naphthobenzyl has a visual transition from yellow (pH 0-8.2) to turquoise (pH 10). In sequential |
| EINECS | 205-656-3 |
| HTC | 29145000 |
| PubChem ID | 24857510 |
| SMILES | Oc1ccc(\C(c2ccccc2)=C3\C=CC(=O)c4ccccc34)c5ccccc15 |
| InChI | 1S/C27H18O2/c28-25-16-14-23(19-10-4-6-12-21(19)25)27(18-8-2-1-3-9-18)24-15-17-26(29)22-13-7-5-11-20(22)24/h1-17,28H/b27-24- |
| InChI Key | VDDWRTZCUJCDJM-PNHLSOANSA-N |
| Beilstein/REAXYS | 2628063 |
| NACRES Code | NA.47 |
| UNSPSC | 12171500 |
| Hazard Symbols | Transport |
| MSDS | msds/20961_1_145_50_6.pdf |
| Bioactivity | α-Naphtholbenzein (p-Naphtolbenzein) is a dye. α-Naphtholbenzein can be used as a pH indicator. α-Naphtholbenzein has a visual transition from yellow (pH0-8.2) to turquoise (pH10). α-Naphtholbenzein is often used during sequential injection analysis technique done for acid-base titrations[1]. Related Catalog Research Areas >> Others Signaling Pathways >> Others >> Others References [1]. Maskula S, et al. Titration of strong and weak acids by sequential injection analysis technique. Talanta. 2000 May 31;52(1):91-9. Chemical & Physical Properties Density 1.3±0.1 g/cm3 Boiling Point 578.6±50.0 °C at 760 mmHg Melting Point 230-235 °C(lit.) Molecular Formula C27H18O2 Molecular Weight 374.431 Flash Point 242.3±22.7 °C Exact Mass 374.130676 PSA 37.30000 LogP 7.11 Vapour Pressure 0.0±1.7 mmHg at 25°C Index of Refraction 1.724 InChIKey VDDWRTZCUJCDJM-UHFFFAOYSA-N SMILES O=C1C=CC(=C(c2ccccc2)c2ccc(O)c3ccccc23)c2ccccc21 Stability Stable. Combustible. Incompatible with strong oxidizing agents. Water Solubility insoluble |
| Use of | α-Naphtholbenzein (p-Naphtolbenzein) is a dye. α-Naphtholbenzein can be used as a pH indicator. α-Naphtholbenzein has a visual transition from yellow (pH0-8.2) to turquoise (pH10). α-Naphtholbenzein is often used during sequential injection analysis technique done for acid-base titrations[1]. Properties Name p-Naphtholbenzein Synonym More Synonyms α-Naphtholbenzein Biological Activity Description α-Naphtholbenzein (p-Naphtolbenzein) is a dye. α-Naphtholbenzein can be used as a pH indicator. α-Naphtholbenzein has a visual transition from yellow (pH0-8.2) to turquoise (pH10). α-Naphtholbenzein is often used during sequential injection analysis technique done for acid-base titrations[1]. Related Catalog Research Areas >> Others Signaling Pathways >> Others >> Others References [1]. Maskula S, et al. Titration of strong and weak acids by sequential injection analysis technique. Talanta. 2000 May 31;52(1):91-9. Chemical & Physical Properties Molecular Formula C27H18O2 Exact Mass 374.130676 PSA 37.30000 Index of Refraction 1.724 InChIKey VDDWRTZCUJCDJM-UHFFFAOYSA-N Stability Stable. Combustible. Incompatible with strong oxidizing agents. Water Solubility insoluble |
| Tax Rebate | 9.0% |
| Supervision | none |
| Transport Info | Product name: Purity: 98.0% |
| MSDS Transport Info | Module 14. Shipping information 14.1 UN dangerous goods number European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.2 Names specified by the United Nations (UN) European Land Transport Dangerous Regulations: Non-dangerous goods IMDG Code: Non-dangerous goods International air transport dangerous goods regulations: non-dangerous goods 14.3 Transport hazard categories European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.4 Package group European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.5 Environmental hazards European Land Transport Dangerous Regulations: No International Maritime Transport Dangerous Regulations Maritime Pollutants: No International Air Transport Risk Regulations: No 14.6 Special reminder to users No data available |
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