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P1152

Sigma-Aldrich

Poly(Ala, Glu, Lys, Tyr) 6:2:5:1 hydrobromide

greener alternative

Ala:Glu:Lys:Tyr (6:2:5:1), mol wt 20,000-30,000

Synonym(s):

(L-Ala, L-Glu, L-Lys, L-Tyr)n ·HBr, COP-1

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About This Item

CAS Number:
28704-27-0
MDL number:
MFCD00166401
UNSPSC Code:
12352200
NACRES:
NA.26

form

powder

Quality Level

200

feed ratio

Ala:Glu:Lys:Tyr (6:2:5:1)

mol wt

20,000-30,000

greener alternative product score

old score: 56
new score: 39
Find out more about DOZN™ Scoring

greener alternative product characteristics

Designing Safer Chemicals
Safer Solvents and Auxiliaries
Reduce Derivatives
Learn more about the Principles of Green Chemistry.

color

white to off-white

greener alternative category

, Re-engineered

storage temp.

−20°C

InChI

1S/C9H11NO3.C6H14N2O2.C5H9NO4.C3H7NO2/c10-8(9(12)13)5-6-1-3-7(11)4-2-6;7-4-2-1-3-5(8)6(9)10;6-3(5(9)10)1-2-4(7)8;1-2(4)3(5)6/h1-4,8,11H,5,10H2,(H,12,13);5H,1-4,7-8H2,(H,9,10);3H,1-2,6H2,(H,7,8)(H,9,10);2H,4H2,1H3,(H,5,6)/t8-;5-;3-;2-/m0000/s1

InChI key

YLOCGHYTXIINAI-XKUOMLDTSA-N

Related Categories

General description

We are committed to bringing you Greener Alternative Products, which adhere to one of the four categories of Greener Alternatives . This product belongs to category of Re-engineered products, showing key improvements in Green Chemistry Principles “Designing Safer Chemicals”, "Safer Solvents and Auxiliaries" and “Reduce Derivatives”. Click here to view its DOZN scorecard.

Biochem/physiol Actions

Poly(Ala, Glu, Lys, Tyr) 6:2:5:1 hydrobromide is a polyamino acid reported to have a suppressive effect on allergic encephalomyelitis.
Reported to have suppressive effect on experimental allergic encephalomyelitis induced in laboratory animals.

Analysis Note

Reported molecular weight based on viscosity.

Other Notes

For additional technical information on polyamino acids please visit the Polyamino acid FAQ resource.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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M Sela
Applied biochemistry and biotechnology, 83(1-3), 63-70 (2000-05-29)
The conformation of a peptide defines its antigenic specificity. In most cases, a free peptide is in a random form, whereas the same peptide within a protein has a defined conformation. Immunological cross-reactions between the two are rare. Nevertheless, there
E Zisman et al.
European journal of immunology, 24(10), 2497-2505 (1994-10-01)
Studies with the well-characterized, synthetic, random-multichain polypeptide poly(LTyr,LGlu)-poly(DLAla)-poly(LLys) (T,G)-A-L) led to the discovery of determinant-specific genetic control of the immune response, as well as to other immunological phenomena. Moreover, the tetrapeptide TyrTyrGluGlu built on the same backbone ("(T-T-G-G)-A--L") was found
Expanded clinical trials of treatments for multiple sclerosis: copolymer 1 (COP-1) treatment investigational new drug (IND) program.
Y Stark
Annals of neurology, 36(1), 114-115 (1994-07-01)
Carmen C M Chan
Recent patents on CNS drug discovery, 3(3), 189-199 (2008-11-11)
Spinal cord injury leads to a devastating cascade of secondary complications that eventually results in the formation of scar tissue many times the size of the original insult. Inflammation plays a very important role towards the development of such scar
Byoung-Joo Choi et al.
Japanese heart journal, 45(4), 697-702 (2004-09-09)
A 16 year-old Korean girl with cardiomegaly was found to have a "right atrial cystic mass" on transthoracic echocardiography. An unusual cystic structure made the diagnosis difficult. However, transesophageal echocardiography and multidetector computed tomography revealed a coronary artery fistula with
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Articles

Poly(Amino Acid) Block Copolymers for Drug Delivery and other Biomedical Applications

Humankind has utilized protein materials throughout its existence, starting with the use of materials such as wool and silk for warmth and protection from the elements and continuing with the use of recombinant DNA techniques to synthesize proteins with unique and useful properties.

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