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PHR1024

Laktose (Monohydrat)

Pharmaceutical Secondary Standard; Certified Reference Material

Lactose (Monohydrate)

Synonym(e):

D-Laktose Monohydrat, β-D-Gal-(1→4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Milchzucker

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Ihnen/SKUVerfügbarkeitPreis
1 g
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€ 98,50

Über diesen Artikel

Empirische Formel (Hill-System):
C12H22O11 · H2O
CAS-Nummer:
Molekulargewicht:
360.31
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-559-2
Beilstein/REAXYS Number:
3768231
MDL number:

€ 98,50


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Quality Segment

grade

certified reference material, pharmaceutical secondary standard

agency

traceable to Ph. Eur. Y0001750, traceable to USP 1356701

API family

lactose

CofA

current certificate can be downloaded

analyte chemical class(es)

oligosaccharides

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

application(s)

cleaning products
cosmetics
detection
environmental
food and beverages
personal care
pharmaceutical (small molecule)

format

neat

storage temp.

2-30°C

SMILES string

O.OC[C@@H](O)[C@@H](O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C=O

InChI

1S/C12H22O11.H2O/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12;/h1,4-12,14-21H,2-3H2;1H2/t4-,5+,6+,7+,8-,9-,10+,11+,12-;/m0./s1

InChI key

HBDJFVFTHLOSDW-XBLONOLSSA-N

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

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.
Lactose (monohydrate) may be used as a reference standard in determining the amount of lactose (monohydrate) present in food samples using high performance anion exchange chromatography (HPIEC) with pulsed amperometric detection.

Analysis Note

These secondary standards offer multi-traceability to the USP and EP (PhEur) primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
To see an example of a Certificate of Analysis for this material enter LRAC3265 in the slot below. This is an example certificate only and may not be the lot that you receive.


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Lagerklasse

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



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Analysenzertifikate (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/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?

Reviews

Active Filters

  1. Rockville, MD
    • Review 1
    • Votes 0
    4 out of 5 stars.

    Which value is certified?

    When I'm looking to purchase certified reference materials to be used in our interlab comparison studies, we need to see which value is certified, but this catalog entry doesn't provide that information. And there is no CoA to evaluate.

    Helpful?

    1. Response from Merck KGaA:

      Thank you for your review. We encourage customers who experience problems with our products to call or email us for additional technical support. Please visit https://www.sigmaaldrich.com/US/en/support/customer-support to submit a Product Technical Inquiry.