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30420

Sigma-Aldrich

Phosphinic acid

puriss. p.a., 49.5-50.5% (alkalimetric)

Synonym(s):

Hypophosphorous acid

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About This Item

Linear Formula:
H3PO2
CAS Number:
6303-21-5
Molecular Weight:
66.00
EC Number:
228-601-5
MDL number:
MFCD02183592
UNSPSC Code:
12352106
PubChem Substance ID:
329753506

grade

puriss. p.a.

concentration

49.5-50.5% (alkalimetric)

impurities

≤0.001% heavy metals (as Pb)
≤0.02% total S (as SO4)

density

1.206 g/mL at 20 °C (lit.)

anion traces

chloride (Cl-): ≤150 mg/kg
phosphate, phosphite (as H3PO3): ≤1%

cation traces

As: ≤2 mg/kg
Ba: ≤50 mg/kg
Ca: ≤50 mg/kg
Cd: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤10 mg/kg
K: ≤10 mg/kg
Mn: ≤5 mg/kg
Na: ≤60 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤1 mg/kg

SMILES string

O[PH2]=O

InChI

1S/H3O2P/c1-3-2/h3H2,(H,1,2)

InChI key

ACVYVLVWPXVTIT-UHFFFAOYSA-N

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Certificates of Analysis (COA)

Lot/Batch Number
72520
10600
03210
10520
02090

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Preparation of phosphinic acids: Michael additions of phosphonous acids/esters to conjugated systems.
Thottathil JK, et al.
Tetrahedron Letters, 25(42), 4741-4744 (1984)
The invention of radical reactions. Part 32. Radical deoxygenations, dehalogenations, and deaminations with dialkyl phosphites and hypophosphorous acid as hydrogen sources.
Barton DHR, et al.
The Journal of Organic Chemistry, 58(24), 6838-6842 (1993)
William W Metcalf et al.
Annual review of biochemistry, 78, 65-94 (2009-06-06)
Natural products containing carbon-phosphorus bonds (phosphonic and phosphinic acids) have found widespread use in medicine and agriculture. Recent years have seen a renewed interest in the biochemistry and biology of these compounds with the cloning of the biosynthetic gene clusters
M Collinsová et al.
Current medicinal chemistry, 7(6), 629-647 (2000-03-07)
This review summarizes our knowledge of biochemical, biological and medical applications and properties of phosphinic acid compounds. Phosphinic acid compounds (phosphinates) are derivatives of phosphinic acid H2P(O)(OH). The major attention of this article is focused on applications of phosphinates of
Hypophosphorous acid and its salts: New reagents for radical chain deoxygenation, dehalogenation and deamination.
Barton DHR, et al.
Tetrahedron Letters, 33(39), 5709-5712 (1992)
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