PHR1323
L-シスチン
Pharmaceutical Secondary Standard; Certified Reference Material
別名:
(R,R)-3,3′-ジチオビス(2-アミノプロピオン酸)
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この商品について
化学式:
[-SCH2CH(NH2)CO2H]2
CAS番号:
分子量:
240.30
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-296-3
Beilstein/REAXYS Number:
1728094
MDL number:
Quality Level
grade
certified reference material, pharmaceutical secondary standard
agency
traceable to Ph. Eur. C3300000, traceable to USP 1161586
API family
cystine
CofA
current certificate can be downloaded
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
mp
>240 °C (dec.) (lit.)
application(s)
pharmaceutical (small molecule)
format
neat
storage temp.
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
General description
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.
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.
Application
L-Cysteine may be used as a pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations by chromatography.
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.
Analysis Note
These secondary standards offer multi-traceability to the US and EP primary standards, where they are available.
Other Notes
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.
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.
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保管分類
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
試験成績書（COA）
製品のロット番号・バッチ番号を入力して、試験成績書（COA） を検索できます。ロット番号・バッチ番号は、製品ラベルに「Lot」または「Batch」に続いて記載されています。
Simultaneous identification and determination of total content of aminoacids in food supplements-tablets by gas chromatography
Obreshkova DP, et al.
Asian journal of experimental biological sciences, 5, 57-68 (2012)
l-Cysteine
Nonvitamin and Nonmineral Nutritional Supplements, 59(11), 53-58 (2019)
Quantitative analysis of N-acetylcysteine and its pharmacopeial impurities in a pharmaceutical formulation by liquid chromatography-UV detection-mass spectrometry.
Toussaint B,
Journal of Chromatography A, 896(1-2), 191-199 (2000)