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
PHR1012
Methylparaben
Pharmaceutical Secondary Standard; Certified Reference Material
Synonym(s):
Methyl 4-hydroxybenzoate, p-Hydroxybenzoic acid methyl ester, Methyl paraben, NIPAGIN
About This Item
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InChI
1S/C8H8O3/c1-11-8(10)6-2-4-7(9)5-3-6/h2-5,9H,1H3
InChI key
LXCFILQKKLGQFO-UHFFFAOYSA-N
SMILES string
COC(=O)c1ccc(O)cc1
grade
certified reference material, pharmaceutical secondary standard
agency
traceable to Ph. Eur. M1650000, traceable to USP 1432005
API family
parabens
CofA
current certificate can be downloaded
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
mp
125-128 °C (lit.)
application(s)
cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care
pharmaceutical (small molecule)
format
neat
storage temp.
2-30°C
Quality Level
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This Item | 1432005 | 47889 | M1650000 |
|---|---|---|---|
| technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) - | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) - |
| application(s) cleaning products | application(s) pharmaceutical (small molecule) | application(s) cleaning products | application(s) pharmaceutical (small molecule) |
| format neat | format neat | format neat | format neat |
| Quality Level 300 | Quality Level - | Quality Level 100 | Quality Level - |
| grade certified reference material, pharmaceutical secondary standard | grade pharmaceutical primary standard | grade analytical standard | grade pharmaceutical primary standard |
| storage temp. 2-30°C | storage temp. - | storage temp. 2-30°C | storage temp. - |
General description
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
Analysis Note
Other Notes
comparable product
related product
hcodes
pcodes
Hazard Classifications
Aquatic Chronic 2
Storage Class
11 - Combustible Solids
flash_point_f
334.4 °F
flash_point_c
168 °C
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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