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8.43942

Propanephosphonic acid anhydride

(50% solution in ethyl acetate) for synthesis T3P

Synonym(s):

2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphorinane-2,4,6-trioxide solution, PPACA, Propylphosphonic anhydride, T3P

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About This Item

NACRES:
NA.22
UNSPSC Code:
12352108
Form:
liquid
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vapor pressure

97 hPa ( 20 °C)

Quality Segment

form

liquid

bp

77 °C/1013 hPa (ethyl acetate)

transition temp

flash point -4 °C (ethyl acetate)

density

1.08 g/cm3 at 20 °C

storage temp.

2-8°C

Application

  • Cyclization of Linear Tetrapeptides Containing N‐Methylated Amino Acids: The study reports the synthesis of naturally occurring cyclotetrapeptides using 1-propanephosphonic acid anhydride, noting unexpected findings in cyclization patterns. (Zhang et al., 2017).

Analysis Note

Assay (T3P) (NMR): ≥ 40.0 %
Pyropropanephosphonic acid (NMR): ≤ 10.0 %
Propanephosphonic acid (NMR): ≤ 0.50 %
Ethyl acetate (calculated): ≤ 50.0 %


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Signal Word

Danger

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 2 - Met. Corr. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class

3 - Flammable liquids

WGK

WGK 1

Flash Point (°F)

24.8 °F - closed cup - ethyl acetate

Flash Point (°C)

-4 °C - closed cup - ethyl acetate



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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

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  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

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