CAS No 38183-12-9 , 4'-phenylspiro[2-benzofuran-3,2'-furan]-1,3'-dione Search by region : Germany

Name: 4'-phenylspiro[2-benzofuran-3,2'-furan]-1,3'-dione
Synonyms: 4'-phenylspiro[2-benzofuran-3,2'-furan]-1,3'-dione;38183-12-9; 4-Phenylspiro[furan-2(3H)-1'-(3'-H)-Isobenzofuran]-3,3'-dione; 4'-phenylspiro[2-benzofuran-3,2'-furan]-1,3'-dione;
CAS Registry Number:38183-12-9
Transport: UN 1090 3/PG 2
Melting Point: 155-157 ºC
Flash Point: -17 °C
Boiling Point:
Vapour density:
Density: 1.43g/cm³
Refractive index: 1.686
Safety Statements: R36/37/38
Hazard Symbols: Xi: Irritant;
Flash Point: -17 °C
EINECS: 253-814-5
Molecular Weight: 278.2589
InchiKey: ZFKJVJIDPQDDFY-UHFFFAOYSA-N
InChI: InChI=1S/C17H10O4/c18-15-13(11-6-2-1-3-7-11)10-20-17(15)14-9-5-4-8-12
(14)16(19)21-17/h1-10H
Risk Statements: S26;S37/39
Molecular Formula: C₁₇H₁₀O₄
Molecular Structure:

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References of 4'-phenylspiro[2-benzofuran-3,2'-furan]-1,3'-dione

Title: Fluorescamine
CAS Registry Number: 38183-12-9
CAS Name: 4-Phenylspiro[furan-2(3H),1￠(3￠H)-isobenzofuran]-3,3￠-dione
Synonyms: 4-phenylspiro[furan-2(3H),1￠-phthalan]-3,3￠-dione
Manufacturers' Codes: Ro-20-7234
Trademarks: Fluram (Roche)
Molecular Formula: C17H10O4
Molecular Weight: 278.26
Percent Composition: C 73.38%, H 3.62%, O 23.00%
Literature References: Non-fluorescent reagent that reacts readily with primary amines to form highly fluorescent compds: S. Udenfriend et al., Science 178, 871 (1972). Prepn: M. Weigele et al., J. Am. Chem. Soc. 94, 5927 (1972); eidem, J. Org. Chem. 41, 388 (1976). Use as fluorometric reagent: W. Leimgruber, M. Weigele, DE 2350179; eidem, US 3830629 (both 1974 to Hoffmann-La Roche). Review of analytical uses: C. Y. Lai, Methods Enzymol. 47, 236-243 (1977); S. Stein, Peptides in Neurobiology, H. Gainer, Ed. (Plenum, New York, 1977) pp 9-37; S. Udenfriend, Pharmacology 19, 223-227 (1979).
Properties: mp 154-155°. uv max (ether): 235, 276, 284, 306 nm (e 25900, 3950, 4100, 3800).
Melting point: mp 154-155°
Absorption maximum: uv max (ether): 235, 276, 284, 306 nm (e 25900, 3950, 4100, 3800)
Use: Analytical reagent.