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79421

Phosphazene base P4-t-Bu solution

~0.8 M in hexane

Synonym(s):

1-tert-Butyl-4,4,4-tris(dimethylamino)-2,2-bis[tris(dimethylamino)-phosphoranylidenamino]-2λ5,4λ5-catenadi(phosphazene)

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Size/SKUAvailabilityPrice
1 mL

Estimated to ship onJanuary 18, 2027fromMILWAUKEE

$154.00
5 mL

Estimated to ship onJanuary 18, 2027fromMILWAUKEE

$491.00
25 mL

Estimated to ship onJanuary 26, 2027fromMILWAUKEE

$1,680.00

About This Item

Empirical Formula (Hill Notation):
C22H63N13P4
CAS Number:
Molecular Weight:
633.72
UNSPSC Code:
12352001
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
5784423
Concentration:
~0.8 M in hexane
Form:
liquid

$154.00


Estimated to ship onJanuary 18, 2027Details


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form

liquid

Quality Segment

concentration

~0.8 M in hexane

density

0.850-0.875 g/mL at 20 °C

functional group

amine

SMILES string

CN(C)P(=NP(=NC(C)(C)C)(N=P(N(C)C)(N(C)C)N(C)C)N=P(N(C)C)(N(C)C)N(C)C)(N(C)C)N(C)C

InChI

1S/C22H63N13P4/c1-22(2,3)23-36(24-37(27(4)5,28(6)7)29(8)9,25-38(30(10)11,31(12)13)32(14)15)26-39(33(16)17,34(18)19)35(20)21/h1-21H3

InChI key

NSRBCQCXZAYQHF-UHFFFAOYSA-N

Other Notes

Extremely strong, hindered, neutral nitrogen base; it is about 1018 times more basic than DBU [pKa (DMSO) 30.25]. Stable to hydrolysis and unaffected by alkylating agents; Base for enolate formation and stereoselective alkylation.

Disclaimer

Product crystallizes out of solution, can be redissolved on heating to 40°C.

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This Item
794167941779408
description

~0.8 M in hexane

description

~2.0 M in THF

description

≥98.0% (NT)

description

≥97.0% (GC)

concentration

~0.8 M in hexane

concentration

~2.0 M in THF

concentration

-

concentration

-

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

form

liquid

form

solution

form

liquid

form

liquid

density

0.850-0.875 g/mL at 20 °C

density

-

density

1.02 g/mL at at 25 °C (lit.), 1.02 g/mL at 25 °C (lit.)

density

-

functional group

amine

functional group

amine

functional group

amine

functional group

amine


Signal Word

Danger

Hazard Classifications

Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - Skin Corr. 1B - STOT RE 1 Inhalation - STOT SE 3

Target Organs

Central nervous system, Nervous system

Storage Class

3 - Flammable liquids

WGK

WGK 3

Flash Point (°F)

-14.8 °F - closed cup

Flash Point (°C)

-26 °C - closed cup

PPE (personal protective equipment)

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter



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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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