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p-Naphtholbenzein

CAS No.
145-50-6
Chemical Name:
p-Naphtholbenzein
Synonyms
α-Naphtholbenzein;A-NAPHTHOLBENZEIN;Nsc 9862;8.2-10.0);pha-NaphthoL;P-NAPTHOLBENZEIN;à-naphtholbenzein;ɑ-Naphtholbenzein;1-NAPHTHOLBENZEIN;P-NAPHTHOLBENZEIN
CBNumber:
CB4450645
Molecular Formula:
C27H18O2
Molecular Weight:
374.43
MDL Number:
MFCD00078492
MOL File:
145-50-6.mol
MSDS File:
SDS
Last updated:2024-04-16 14:59:45

p-Naphtholbenzein Properties

Melting point 230-235 °C(lit.)
Boiling point 463.44°C (rough estimate)
Density 1.0946 (rough estimate)
vapor density 12.9 (vs air)
refractive index 1.4875 (estimate)
storage temp. Store at +5°C to +30°C.
solubility Solubility Insoluble in water; soluble in ethanol, methanol
pka 8.95(at 25℃)
form Liquid
color Pale Red-Brown
PH Range Green (0.0) to yellow (0.8);Yellow (8.2) to green-blue (11.0)
Odor Odorless
Water Solubility insoluble
λmax 210nm
BRN 3471575
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey VDDWRTZCUJCDJM-SOYKGTTHSA-N
CAS DataBase Reference 145-50-6(CAS DataBase Reference)
EPA Substance Registry System 1(4H)-Naphthalenone, 4-[(4-hydroxy-1-naphthalenyl)phenylmethylene]- (145-50-6)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  3
10-21
TSCA  Yes
HS Code  29145000
NFPA 704
1
1 0

p-Naphtholbenzein price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 291099 α-Naphtholbenzein indicator grade 145-50-6 5g $59.8 2024-03-01 Buy
Sigma-Aldrich 291099 α-Naphtholbenzein indicator grade 145-50-6 25g $213 2024-03-01 Buy
Sigma-Aldrich 1.06202 1-Naphtholbenzein indicator Reag. Ph Eur 145-50-6 5G $101 2024-03-01 Buy
TCI Chemical N0028 p-Naphtholbenzein 145-50-6 25g $267 2024-03-01 Buy
Alfa Aesar A16125 alpha-Naphtholbenzein 145-50-6 5g $43.9 2024-03-01 Buy
Product number Packaging Price Buy
291099 5g $59.8 Buy
291099 25g $213 Buy
1.06202 5G $101 Buy
N0028 25g $267 Buy
A16125 5g $43.9 Buy

p-Naphtholbenzein Chemical Properties,Uses,Production

Chemical Properties

deep red to rust-coloured crystals

Uses

alpha-Naphtholbenzein is a pH indicator (pH 0.0-0.8/ pH 8.2-10.0). Dyes and metabolites.

p-Naphtholbenzein Preparation Products And Raw materials

Raw materials

Preparation Products

p-Naphtholbenzein Suppliers

Global( 222)Suppliers
Supplier Tel Email Country ProdList Advantage
Henan Fengda Chemical Co., Ltd
+86-371-86557731 +86-13613820652 info@fdachem.com China 20288 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21639 55
CONIER CHEM AND PHARMA LIMITED
+8618523575427 sales@conier.com China 49374 58
career henan chemical co
+86-0371-86658258 +8613203830695 factory@coreychem.com China 29815 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34553 58
Dideu Industries Group Limited
+86-29-89586680 +86-15129568250 1026@dideu.com China 23325 58
Dayang Chem (Hangzhou) Co.,Ltd.
571-88938639 +8617705817739 info@dycnchem.com China 52849 58
LEAP CHEM CO., LTD.
+86-852-30606658 market18@leapchem.com China 24727 58
PT CHEM GROUP LIMITED
peter68@ptchemgroup.com China 35425 58
GIHI CHEMICALS CO.,LIMITED
+8618058761490 info@gihichemicals.com China 49979 58

View Lastest Price from p-Naphtholbenzein manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
p-Naphtholbenzein pictures 2024-04-16 p-Naphtholbenzein
145-50-6
US $5.00-2.00 / kg 1kg 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
α-Naphtholbenzein pictures 2020-02-11 α-Naphtholbenzein
145-50-6
US $9.80 / KG 1g >98% 20 tons Career Henan Chemical Co
α-Naphtholbenzein,4,4′-(α-Hydroxybenzylidene)di-1-naphthol, p-naphtholbenzein alpha-Naphtholbenzein, pure, 90% 10GR alpha-Naphtholbenzein, pure, 90% 25GR 1-NAPHTHOLBENZEIN INDICATOR 5 G α- naphthol quinone phenylMethane MAG BIND EQUIPURE GDNA (1X96) 1-Naphtholbenzein indicator Reag. Ph Eur 1(4H)-Naphthalenone, 4-(4-hydroxy-1-naphthalenyl)phenylmethylene- 4,4'-(à-hydroxybenzylidene)di-1-naphthol à-naphtholbenzein 1-Naphtholbenzein(PhIndicator)-(P-Naphtholbenzein) 1-Naphtholbenzein(PhIndicator) 1-NAPHTHOL BENZEIN ( ALPHA- NAPHTHOL BENZEIN) pH INDICATOR alpha-Naphtholbenzein, pure, 90% ɑ-Naphtholbenzein [(4-Hydroxy-1-naphthalenyl)phenylmethylene]-1-4(H)-naphthalenone 4-[(4-Hydroxynaphthalen-1-yl)-phenylmethylidene]naphthalen-1-one Alpha-naphtholbenzein, 90%, pure p-Naphtholbenzein (0.2% in Acetic Acid) [for Non-aqueous titration] p-Naphtholbenzein (1% in ca. 95% Ethanol) [for pH Determination] alpha-Naphtholbenzein,98% 1(4h)-naphthalenone, 4-[α-(4-hydroxy-1-naphthyl)benzylidene]- Nsc 9862 LABOTEST-BB LT00452038 1-NAPHTHOLBENZEIN ALPHA,ALPHA-BIS(4-HYDROXY-1-NAPHTHYL)BENZYL ALCOHOL ALPHA-NAPHTHOLBENZEIN 4-[(4-HYDROXY-1-NAPHTHALENYL)PHENYLMETHYLENE]-1(4H)-NAPHTHALENONE 4-[(4-hydroxy-1-naphthalenyl)phenylmethylene]-1(4h)-naphthalenon 4,4’-(α-Hydroxybenzylidene)di-1-naphthol P-NAPTHOLBENZEIN P-NAPHTHOLBENZEIN P-NAPHTHOLBENZEIN (ALPHA) P-NAPHTHOLBENZEIN INDICATOR P-NAPHTHOLBENZEIN TS 4-(alpha-(4-hydroxy-1-naphthyl)benzylidene)naphthalen-1(4H)-one ALPHA-NAPHTHOLBENZEIN, INDICATOR GRADE P-NAPHTHOLBENZEIN(ALPHA-)(0.2% IN ACETIC ACID)[FOR NON-AQUEOUS TITRATION] P-NAPHTHOLBENZEIN(ALPHA-)(10% IN CA. 95% ETHANOL) [FOR PH DETERMINATION] pha-NaphthoL (4E)-4-[(4-hydroxy-1-naphthalenyl)-phenylmethylidene]-1-naphthalenone α - naphthol benzyl alcohol alpha-Naphtholbenzein (Technical Grade) p-Naphtholbenzein USP/EP/BP α-Naphtholbenzein (Technical Grade) α-Naphtholquinone phenylmethane 1-Naphtholbenzein, indicator Reag. alpha-Naphthol benzene 4-(?-(4-hydroxy-1-naphthyl)benzylidene)naphthalen-1(4H)-one P-Naphtholbenzein, Pure, Indicator Grade, Fisher Chemical&trade 1-NAPHTHOLBENZEIN Indicator grade 8.2-10.0) alpha-Naphtholbenzein,alpha-Naphtholbenzein indicator (pH 0.0-0.8 A-NAPHTHOLBENZEIN α-Naphtholbenzein p-Naphtholebnzein (E)-4-((4-hydroxynaphthalen-1-yl)(phenyl)methylene)naphthalen-1(4H)-one alpha-Naphtholbenzein,alpha-Naphtholbenzein,indicator (pH 0.0-0.8