Detail of "29433-95-2"

CAS Number:
29433-95-2
Name:
L-Cysteine,S-(carboxymethyl)-, homopolymer
Molecular Structure:
Formula:
C5 H9 N O4 S
Molecular Weight:
0
Synonyms:
Alanine,3-[(carboxymethyl)thio]-, L-, peptides (8CI); Poly(S-carboxymethylcysteine);Poly[S-(carboxymethyl)-L-cysteine]; S-Carboxymethyl-L-cysteine homopolymer;S-Carboxymethylcysteine polymer
Density:
1.514g/cm³
Boiling Point:
417.3°Cat760mmHg
Flash Point:
206.2°C

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The interaction of Acridine Orange with poly(S-carboxymethyl-L-cysteine): The interaction of Acridine Orange with poly(S-carboxymethyl-L-cysteine). Imae, Toyoko; Ikeda, Shoichi (Fac. Sci., Nagoya Univ., Nagoya, Japan). Bull. Chem. Soc. Jpn., 50(11), 2877-80 (English) 1977. CODEN: BCSJA8. DOCUMENT TYPE: Journal CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) The interaction of Acridine Orange (I) [65-61-2] with poly(S-carboxymethyl-L-cysteine) (II) [29433-95-2] detd. by the soly. behavior, absorption spectra, and CD of the mixt. indicates that the binding of I with II is mainly caused by electrostatic effects, and the soly. of the mixt. is interpreted by considering the ionization of II and the binding of I to II. When I is added to an aq. soln. of II, the mixt. is homogeneous at higher pH, but pptn. takes place at lower pH; the threshold pH varies from 3.5-6, depending on the mixing ratios. For [II]/[I] <1, the mixt. is homogeneous at pH between 4 and 2, when no salt is added. Various types of CD are induced for the homogeneous solns., which are characteristic of bound I species on II and the structure of I-II complex.