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Documentos Principais

41019

Supelco

Cafeína

analytical standard

Sinônimo(s):

1,3,7-Trimetilxantina

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1 G
R$ 253,00
5 G
R$ 634,00

R$ 253,00


Previsão de entrega em27 de maio de 2025


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1 G
R$ 253,00
5 G
R$ 634,00

About This Item

Fórmula empírica (Notação de Hill):
C8H10N4O2
Número CAS:
Peso molecular:
194.19
Beilstein:
17705
Número CE:
Número MDL:
Código UNSPSC:
12352210
ID de substância PubChem:
NACRES:
NA.24

R$ 253,00


Previsão de entrega em27 de maio de 2025


Solicite uma grande encomenda

grau

analytical standard

Nível de qualidade

prazo de validade

limited shelf life, expiry date on the label

pf

234-236.5 °C (lit.)
235-237 °C (±0.3°C)

aplicação(ões)

food and beverages
pharmaceutical

Formato

neat

cadeia de caracteres SMILES

CN1C(=O)N(C)c2ncn(C)c2C1=O

InChI

1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3

chave InChI

RYYVLZVUVIJVGH-UHFFFAOYSA-N

Informações sobre genes

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Descrição geral

Melting point standard 235-237 °C, caffeine is useful to calibrate melting point instruments, in the thermodynamic mode of measurement. The value of its melting point is determined with an average of 6 to 12 measurements using a Büchi B-545 instrument that is calibrated against primary standards.

Aplicação

Caffeine melting point standard 235-237 °C finds its use in the characterization of pure chemicals and pharmaceutical compounds.

Características e benefícios

  • Melting point calibration standard traceable to primary standards (LGC, London)
  • Grade: Analytical Standard
  • Standard deviation up to ± 0.3 °C
  • Provided with certificates of analysis and safety data sheet

Produtos recomendados

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Pictogramas

Exclamation mark

Palavra indicadora

Warning

Frases de perigo

Declarações de precaução

Classificações de perigo

Acute Tox. 4 Oral

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number

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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/449/386/product-dating-information-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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