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Sigma-Aldrich

Cysteamine

≥98.0% (RT)

Synonym(s):

β-Mercaptoethylamine, 2-Aminoethanethiol, 2-Mercaptoethylamine, Decarboxycysteine, MEA, Thioethanolamine

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About This Item

Linear Formula:
NH2CH2CH2SH
CAS Number:
Molecular Weight:
77.15
Beilstein:
635649
EC Number:
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:
NACRES:
NA.25
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Quality Level

Assay

≥98.0% (RT)

storage temp.

2-8°C

SMILES string

NCCS

InChI

1S/C2H7NS/c3-1-2-4/h4H,1-3H2

InChI key

UFULAYFCSOUIOV-UHFFFAOYSA-N

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Application

Cysteamine is suitable for use:
  • in the preparation of cysteamine modified gold nanoparticles (AuNP)[1]
  • in the fabrication of SU-8 microrods, where in, the amine group of cysteamine reacts with the unreacted epoxide rings present on the surface of the particles, thereby opening it and forming a covalent bond[2]
  • to enhance in vitro development of porcine oocytes matured and fertilized in vitro[3]
  • in a study to demonstrate the depletion effect of cysteamine on cystinotic leucocyte granular fractions of cystine by disulphide interchange[4]
  • as a radioprotector[5]
  • to administer subcutaneously in rats to study its blocking effect on somatostatin secretion without modifying the pancreatic insulin or glucagon content [6]
  • as a scavenger in electrophoretic gels (acetic acid/urea gels)[7]

Biochem/physiol Actions

Cysteamine (β-mercaptoethylamine) depletes cystine from patient′s cells and there by regulates renal glomerular function and increases growth in them. Therefore, cysteamine is considered to be a potential therapeutic for nephropathic cystinosis.[8]

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

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

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Certificates of Analysis (COA)

Lot/Batch Number

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J Carmichael et al.
Cancer research, 47(4), 943-946 (1987-02-15)
Radiation survival curves were generated for V79 Chinese hamster and two human lung cancer cell lines (NCI-H460 and NCI-H249) with doubling times of 10, 20, and 85 h, respectively, using a standard clonogenic assay, a dye exclusion assay, and a
Automatic microcircuit formation based on gold-coated SU-8 microrods via dielectrophoresis.
Yu-Kun R, et al.
Chinese Physics B, 22 (2013)
C G Grupen et al.
Biology of reproduction, 53(1), 173-178 (1995-07-01)
Most porcine oocytes matured and fertilized in vitro fail to develop normally due to abnormal fertilization. The aim of this study was to determine the effect of cysteamine on pronuclear formation and developmental competence in pig embryos produced in vitro.
R L Sorenson et al.
Diabetes, 32(4), 377-379 (1983-04-01)
Cysteamine (300 mg/kg) administered subcutaneously depletes pancreatic somatostatin to 36% of control levels, but does not alter pancreatic insulin or glucagon content. Although perfusion of pancreata from normal animals with glucose (300 mg/dl) markedly stimulated somatostatin release, pancreata from cysteamine-treated
Cysteamine therapy for children with nephropathic cystinosis
Gahl WA, et al.
The New England Journal of Medicine, 316(16), 971-977 (2018)

Questions

1–2 of 2 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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