Cysteine monohydrate | CAS#39665-15-1 | proteinogenic amino acid

MedKoo Cat#: 596992 | Name: Cysteine monohydrate

Description:

WARNING: This product is for research use only, not for human or veterinary use.

Cysteine monohydrate is a semi-essential proteinogenic amino acid. The thiol side chain in cysteine often participates in enzymatic reactions, as a nucleophile. The thiol is susceptible to oxidation to give the disulfide derivative cystine, which serves an important structural role in many proteins. When used as a food additive, it has the E number E920. It is encoded by the codons UGU and UGC.

Chemical Structure

Cysteine monohydrate

CAS#39665-15-1

Theoretical Analysis

MedKoo Cat#: 596992

Name: Cysteine monohydrate

CAS#: 39665-15-1

Chemical Formula: C3H9NO3S

Exact Mass: 139.0303

Molecular Weight: 139.16

Elemental Analysis: C, 25.89; H, 6.52; N, 10.06; O, 34.49; S, 23.04

Price and Availability

This product is currently not in stock but may be available through custom synthesis. To ensure cost efficiency, the minimum order quantity is 1 gram. The estimated lead time is 2 to 4 months, with pricing dependent on the complexity of the synthesis (typically high for intricate chemistries). Quotes for quantities below 1 gram will not be provided. To request a quote, please click the button below. Note: If this product becomes available in stock in the future, pricing will be listed accordingly.

Bulk Inquiry

Related CAS #

No Data

Synonym

Cysteine monohydrate; Cysteine hydrate; L-Cysteine, monohydrate;

IUPAC/Chemical Name

L-cysteine hydrate

InChi Key

RIPZAYPXOPSKEE-DKWTVANSSA-N

InChi Code

InChI=1S/C3H7NO2S.H2O/c4-2(1-7)3(5)6;/h2,7H,1,4H2,(H,5,6);1H2/t2-;/m0./s1

SMILES Code

N[C@@H](CS)C(O)=O.[H]O[H]

Appearance

Solid powder

Purity

>98% (or refer to the Certificate of Analysis)

Shipping Condition

Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition

Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility

Soluble in DMSO

Shelf Life

>2 years if stored properly

Drug Formulation

This drug may be formulated in DMSO

Stock Solution Storage

0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code

2934.99.9001

More Info

Instruction

View handling instruction

Preparing Stock Solutions

The following data is based on the product molecular weight 139.16 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass	1 mg	5 mg	10 mg
1 mM	1.15 mL	5.76 mL	11.51 mL
5 mM	0.23 mL	1.15 mL	2.3 mL
10 mM	0.12 mL	0.58 mL	1.15 mL
50 mM	0.02 mL	0.12 mL	0.23 mL

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