Skip to Content
Merck
All Photos(1)

Documents

1161586

USP

Cystine

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

L-Cystine, (R,R)-3,3′-Dithiobis(2-aminopropionicacid)

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
[-SCH2CH(NH2)CO2H]2
CAS Number:
56-89-3
Molecular Weight:
240.30
Beilstein:
1728094
MDL number:
MFCD00064228
UNSPSC Code:
41116107
PubChem Substance ID:
329749499
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

cystine

manufacturer/tradename

USP

mp

>240 °C (dec.) (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

SMILES string

N[C@@H](CSSC[C@H](N)C(O)=O)C(O)=O

InChI

1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1

InChI key

LEVWYRKDKASIDU-IMJSIDKUSA-N

Looking for similar products? Visit Product Comparison Guide

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Cystine USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

related product

Product No.
Description
Pricing

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Maria José Alves et al.
Journal of medical microbiology, 63(Pt 3), 471-477 (2014-01-17)
A group of biofilm-producing bacteria isolated from patients with urinary tract infections was evaluated, identifying the main factors contributing to biofilm formation. Among the 156 isolates, 58 (37.2%) were biofilm producers. The bacterial species (P<0.001), together with patient's gender (P
Jari J Hirvonen et al.
Journal of clinical microbiology, 52(7), 2334-2339 (2014-04-18)
Using a collection (n = 12) of ATCC and known stock isolates, as well as 328 clinical stool specimens, we evaluated the ESwab and the new FecalSwab liquid-based microbiology (LBM) devices for storing and transporting diarrheagenic bacteria. The stock isolates
E Patricia Owen et al.
Pediatric nephrology (Berlin, Germany), 30(4), 595-601 (2014-10-19)
The mutations responsible for cystinosis in South African patients are currently unknown. A pertinent question is whether they are similar to those described elsewhere in the world. Children who were being managed for cystinosis in the Western Cape Province of
Jon M Resch et al.
Synapse (New York, N.Y.), 0 (2014-07-30)
In the central nervous system, cystine import in exchange for glutamate through system x
Kamila Borowczyk et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 981-982, 57-64 (2015-01-24)
In this paper, we describe a simple and robust HPLC based method for determination of total low- and high-molecular-mass thiols, protein S-linked thiols and reduced albumin in plasma. The method is based on derivatization of analytes with 2-chloro-1-methylquinolinium tetrafluoroborate, separation
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service