Merck
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PHR1323

Supelco

L-Cystine

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(s):
(R,R)-3,3′-Dithiobis(2-aminopropionicacid), L-Cystine
Linear Formula:
[-SCH2CH(NH2)CO2H]2
CAS Number:
Molecular Weight:
240.30
Beilstein:
1728094
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.24

Nível de qualidade

300

grau

certified reference material
pharmaceutical secondary standard

Agency

traceable to Ph. Eur. C3300000
traceable to USP 1161586

Certificado de análise (CofA)

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

pf

>240 °C (dec.) (lit.)

application(s)

pharmaceutical (small molecule)

formato

neat

temperatura de armazenamento

2-30°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

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Descrição geral

L-Cysteine a sulfur-containing, proteingenic non-essential amino acid useful in numerous biological applications.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Aplicação

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.
L-Cysteine may be used as a pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations by chromatography.

Nota de análise

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Outras notas

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Nota de rodapé

To see an example of a Certificate of Analysis for this material enter LRAC3784 in the slot below. This is an example certificate only and may not be the lot that you receive.

Código de classe de armazenamento

13 - Non Combustible Solids

WGK

WGK 1

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More Documents

Quotes and Ordering

Protocols

GC Analysis of Amino Acids (as TBDMS Derivatives) on SLB®-5ms (20 m x 0.18 mm I.D., 0.18 μm), Fast GC Analysis

Separation of L-Alanine; Glycine; L-Valine; L-Leucine; L-Isoleucine; L-Proline; L-Methionine; L-Serine; L-Threonine; L-Phenylalanine; L-Aspartic acid; L-4-Hydroxyproline; L-Cysteine; L-Glutamic acid; L-Asparagine; L-Lysine; L-Glutamine; L-Histidine; L-Tyrosine; L-Tryptophan; L-Cystine

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