成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

ChemicalBook >> CAS DataBase List >>2,2'-Furoin

2,2'-Furoin

CAS No.
552-86-3
Chemical Name:
2,2'-Furoin
Synonyms
FUROIN;Furoin>a,a-Furoin;Furoin,98%;Furoin 98%;2,2'-FUROIN;alpha-furoi;2,2'-Furoin;ALPHA-FUROIN;Furfuryl cause
CBNumber:
CB0164010
Molecular Formula:
C10H8O4
Molecular Weight:
192.17
MDL Number:
MFCD00003246
MOL File:
552-86-3.mol
Last updated:2024-12-18 13:37:16

2,2'-Furoin Properties

Melting point 134-137 °C(lit.)
Boiling point 248.14°C (rough estimate)
Density 1.0825 (rough estimate)
refractive index 1.4440 (estimate)
storage temp. Sealed in dry,Room Temperature
solubility acetone: soluble0.25g/10 mL, clear, colorless to deep brown-yellow
form powder to crystal
pka 11.62±0.20(Predicted)
color White to Light yellow to Light orange
BRN 383995
CAS DataBase Reference 552-86-3(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII FP41RNB020
NIST Chemistry Reference Ethanone, 1,2-di-2-furanyl-2-hydroxy-(552-86-3)
EPA Substance Registry System Ethanone, 1,2-di-2-furanyl-2-hydroxy- (552-86-3)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
WGK Germany  3
RTECS  KM5774095
TSCA  Yes
HS Code  29329990
Hazardous Substances Data 552-86-3(Hazardous Substances Data)
NFPA 704
0
1 0

2,2'-Furoin price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 192651 Furoin 98% 552-86-3 5G $149 2023-01-07 Buy
TCI Chemical F0082 Furoin >96.0%(GC) 552-86-3 5g $98 2024-03-01 Buy
TCI Chemical F0082 Furoin >96.0%(GC) 552-86-3 25g $306 2024-03-01 Buy
Alfa Aesar A15272 2,2'-Furoin, 98% 552-86-3 5g $80.65 2024-03-01 Buy
Alfa Aesar A15272 2,2'-Furoin, 98% 552-86-3 25g $301 2024-03-01 Buy
Product number Packaging Price Buy
192651 5G $149 Buy
F0082 5g $98 Buy
F0082 25g $306 Buy
A15272 5g $80.65 Buy
A15272 25g $301 Buy

2,2'-Furoin Chemical Properties,Uses,Production

Chemical Properties

LIGHT YELLOW TO LIGHT BROWN AMORPHOUS POWDER

Uses

Furoin was used as fluorogenic reagent for the selective and sensitive liquid chromatographic determination of various guanidines.

Preparation

2,2'-Furoin is prepared by the condensation of furfural with benzoin under the catalysis of potassium cyanide. 8L of water, 3L of ethanol, and 4kg of furfural were heated to 60-70°C on a water bath, and a solution of 200g potassium cyanide dissolved in 600Chemicalbookml of water was slowly added under stirring. The reaction exotherm automatically heated up to 80-90 ° C, and crystals were precipitated later. After standing, filter, wash the crystals with water and methanol until the washing is colorless, and recrystallize with ethanol, which is the finished product of bran coupler.

Purification Methods

It crystallises from MeOH (charcoal) and distils in a vacuum. [Hartman & Dickey J Am Chem Soc 55 1228 1933.] The (-)-enantiomer crystallises from toluene or EtOH with m 131-131o, and [] 20 -4.9o (dioxane) [Neuberg et al. Arch Biochem 1 393 1943, Beilstein 19 H 204, 19 I 710, 19 II 224, 19 III/IV 2543.]

2,2'-Furoin Preparation Products And Raw materials

Raw materials

Preparation Products

2,2'-Furoin Suppliers

Global( 134)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886 info@dakenam.com China 18751 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21634 55
career henan chemical co
+86-0371-86658258 +8613203830695 factory@coreychem.com China 29811 58
Shaanxi Dideu Medichem Co. Ltd
+86-29-87569266 15319487004 1015@dideu.com China 3942 58
TargetMol Chemicals Inc.
+1-781-999-5354 +1-00000000000 marketing@targetmol.com United States 32161 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
Dayang Chem (Hangzhou) Co.,Ltd.
571-88938639 +8617705817739 info@dycnchem.com China 52849 58
CR Corporation Limited
+8613062833949 fred.wen@crcorporation.cn China 8647 58
GLR Innovations
+91 9891111994 info@glrgroup.in India 4535 58
Hebei Fengjia New Material Co., Ltd
+86-0311-87836622 +86-17333973358 sales06@hbduling.cn China 8051 58

View Lastest Price from 2,2'-Furoin manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,2 2021-08-12 2,2"-Furoin
552-86-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
Furoin pictures 2021-07-02 Furoin
552-86-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
	 2,2'-Furoin pictures 2020-01-10 2,2'-Furoin
552-86-3
US $1.00 / KG 1KG 98% 200kgs Career Henan Chemical Co
  • 2,2
  • 2,2"-Furoin
    552-86-3
  • US $15.00-10.00 / KG
  • 99%+ HPLC
  • Zhuozhou Wenxi import and Export Co., Ltd
  • Furoin pictures
  • Furoin
    552-86-3
  • US $15.00-10.00 / KG
  • 99%+ HPLC
  • Zhuozhou Wenxi import and Export Co., Ltd
  • 	 2,2'-Furoin pictures
  • 2,2'-Furoin
    552-86-3
  • US $1.00 / KG
  • 98%
  • Career Henan Chemical Co
1,2-Di(2-furyl)-2-hydroxyethanone 1,2-di-2-furanyl-2-hydroxy-ethanon 1,2-di-2-furanyl-2-hydroxyethanone 1,2-di-2-furyl-2-hydroxy-ethanon Ethanone, 1,2-di-2-furyl-2-hydroxy- furoylfurylcarbinol Furoylfu-rylcarbinol Ketone, 2-furyl alpha-hydroxyfurfuryl ketone,2-furylalpha-hydroxyfurfuryl ALPHA-FUROIN 1,2-DI(2-FURYL)-2-HYDROXYETHAN-1-ONE 2,2'-FUROIN FUROIN alpha-Furoin,98+% furylfuroylcarbinol a,a-Furoin alpha-furoi Furoin, GC 98+% 1,2-Bis(furan-2-yl)-2-hydroxyethan-1-one alpha-Hydroxyketone Ethanone, 1,2-di-2-furanyl-2-hydroxy- 1,2-Di-2-furanyl-2-hydroxyethan-1-one Furoin,98% Furoin 98% 1,2-Di(furan-2-yl) -2-hydroxyethanone Furoin≥ 98% (GC) 1,2-di(furan-2-yl)-2- hydroxyethanone 1,2-Bis(FuraN-2-Yl)-2-Hydroxyethanone Furoin> 552-86-3 2,2'-Furoin EGP437. Dex-Phos Furfuryl cause Furoin (6CI, 7CI, 8CI) Ascorbic Acid Impurity 33 1,2-di(furan-2-yl)-2-hydroxyethan-1-one FUROIN (1,2-di(2-furyl)-2-hydroxyethan-1-one) 2,2'-Furoin 552-86-3 C4H3OCHOHCOC4H3O Building Blocks Heterocyclic Building Blocks Furans Bioactive Small Molecules Building Blocks C8 to C11 Cell Biology Chemical Synthesis F Heterocyclic Building Blocks Pharmaceutical Intermediates Building Blocks Furans Heterocyclic Building Blocks