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1009005

USP

Acetylcysteine

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

N-Acetyl-L-cysteine, LNAC, NAC

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About This Item

Linear Formula:
HSCH2CH(NHCOCH3)CO2H
CAS Number:
Molecular Weight:
163.19
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
1724426
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grade

pharmaceutical primary standard

agency

USP

API family

acetylcysteine

manufacturer/tradename

USP

mp

106-108 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

SMILES string

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

InChI

1S/C5H9NO3S/c1-3(7)6-4(2-10)5(8)9/h4,10H,2H2,1H3,(H,6,7)(H,8,9)/t4-/m0/s1

InChI key

PWKSKIMOESPYIA-BYPYZUCNSA-N

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

Acetylcysteine USP reference standard intended for use in specified compendial tests and assays.

Also used to prepare standard stock and standard solution for assay by using the liquid chromatography method in conjunction with uv detector according to the given below monographs of United States Pharmacopeia (USP):
  • Acetylcysteine Solution
  • Acetylcysteine
  • Acetylcysteine Compounded Solution

Biochem/physiol Actions

Antioxidant and mucolytic agent. Increases cellular pools of free radical scavengers. Reported to prevent apoptosis in neuronal cells but induce apoptosis in smooth muscle cells. Inhibits HIV replication. May serve as a substrate for microsomal glutathione transferase.

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.

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grade

pharmaceutical primary standard

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pharmaceutical primary standard

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pharmaceutical primary standard

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certified reference material, pharmaceutical secondary standard

manufacturer/tradename

USP

manufacturer/tradename

EDQM

manufacturer/tradename

BP

manufacturer/tradename

-

format

neat

format

neat

format

neat

format

neat

application(s)

pharmaceutical (small molecule)

application(s)

pharmaceutical (small molecule)

application(s)

pharmaceutical
pharmaceutical small molecule

application(s)

pharmaceutical (small molecule)

API family

acetylcysteine

API family

acetylcysteine

API family

acetylcysteine

API family

acetylcysteine

mp

106-108 °C (lit.)

mp

106-108 °C (lit.)

mp

106-108 °C (lit.)

mp

106-108 °C (lit.)


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pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

11 - Combustible Solids



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Questions

1–2 of 2 Questions  
  1. 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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. 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

      Helpful?

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