Detail of "23220-52-2"

MSDS Download
CAS Number:
23220-52-2
Name:
D-Aspartic acid,3-amino-, (3S)-rel-
Molecular Structure:
Formula:
C₄H₈N₂O₄
Molecular Weight:
148.11732
Synonyms:
Asparticacid, 3-amino-, erythro-;Succinic acid, 2,3-diamino-, meso- (8CI);meso-2,3-Diaminosuccinic acid;meso-Diaminosuccinic acid;
EINECS:
245-500-1
Density:
1.611 g/cm³
Boiling Point:
304.7 °C at 760 mmHg
Flash Point:
138.1 °C
Hazard Symbols:
Xi
Risk Codes:
36/37/38
Safety:
26-36 Details

Supplier Location
Supplier Location
- United States(2)
Business Type
Business Type
- Lab/Research institutions(1)
- Manufacturers(0)
- Trading Company(1)
Certificates
Certificates
- ISO (0)
- Production License (0)

Display：

Assay:98% Package:50gm、100gm、1...

325 Integral
325

Tel:025-68935281

Address:Room 517, Floor 5, Anrui building, NO.230 of South zhongshan Road, Baixia area, Nanjing.

Integral
10

Tel:+1-(203)-541-9200

Address:333 Ludlow Street, Stamford, Connecticut 06902, USA

Supplier:Research Organics, Inc. [ United States]

610 Integral
610

Tel:216-883-8025

Address:4353 East 49th Street Cleveland, OH. 44125

Please post your buying leads,so that our qualified suppliers will soon contact you!
*Required Fields

Preparation of peptide dendrimers: Preparation of peptide dendrimers. Krause, Werner; Maier, Franz-Karl; Schmitt-Willich, Heribert; Platzek, Johannes; Press, Wolf-Ruediger; Schuhmann-Giampieri, Gabriele ( Schering A.-G., Germany). Ger. 174700-83-5 and 23220-52-2 are also occured in this study. Offen. DE 19521945 A1 19 Dec 1996, 49 pp. (German). (Germany). CODEN: GWXXBX. CLASS: ICM: C07C237-46. ICS: C07C231-14; A61K049-04; C07F007-10; C07K005-06; A61K031-785. APPLICATION: DE 1995-19521945 12 Jun 1995. DOCUMENT TYPE: Patent CA Section: 34 (Amino Acids, Peptides, and Proteins) Section cross-reference(s): 8, 25 Iodoarene-contg. dendrimers A-{X-[Y-[Z-(W-Dw)z]y]x}a [A = nitrogen-contg. cascade nucleus, X, Y = bond or cascade unit, Z, W = cascade unit, D = T-B, where B = C6I3R1R2-2,4,6,3,5 (R1, R2 = H, carbamoyl, carboxamido), T = CO, CS, CONH, CSNH, etc., a = 2-12, x, y, z = 1-4, w = 1-8, such that 16 ￡ a.x.y.z.w ￡ 128] were prepd. for use as contrast media. Thus, a fully-protected benzyloxycarbonyl-32-polyamine was prepd. from N,N',N'',N'''-tetrakis{8-(benzyloxycarbonylamino)-6-[2-(benzyloxycarbony lamino)ethyl]-5-oxo-3-oxaoctanoyl}cyclen and Na,Ne-bis(lysyl)lysine. Deprotection with HBr/AcOH and reaction with N-(2,3-diacetoxypropyl)-5-[4-(isopropoxycarbonyl)-3-oxabutyrylamino]-2 ,4-6-triiodoisophthalic amide chloride and then diglycolic anhydride afforded a dendrimer, which was superior to lipromide as contrast agent in rat blood. .