Skip to Content
Merck
All Photos(3)

Key Documents

S4172

Sigma-Aldrich

Ammonium sodium phosphate dibasic tetrahydrate

BioXtra, ≥99%

Synonym(s):

sec-Sodium ammonium phosphate, Ammonium sodium hydrogen phosphate, Sodium ammonium hydrogen phosphate

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
NaNH4HPO4 · 4H2O
CAS Number:
Molecular Weight:
209.07
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.25

product line

BioXtra

Quality Level

Assay

≥99%

impurities

≤0.1% Insoluble matter

solubility

H2O: 1 M, clear, colorless

anion traces

chloride (Cl-): ≤0.05%
sulfate (SO42-): ≤0.05%

cation traces

Al: ≤0.0005%
Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
Pb: ≤0.001%
Zn: ≤0.0005%

SMILES string

[NH4+].[Na+].OP([O-])([O-])=O

InChI

1S/H3N.Na.H3O4P.4H2O/c;;1-5(2,3)4;;;;/h1H3;;(H3,1,2,3,4);4*1H2/q;+1;;;;;/p-1

InChI key

IQTQISLCLWJRPM-UHFFFAOYSA-M

Looking for similar products? Visit Product Comparison Guide

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Keiko Inami et al.
Bioorganic & medicinal chemistry, 23(13), 3297-3302 (2015-05-16)
N-Nitroso-N-methylurea (NMU) is a potent carcinogen and suspected as a cause of human cancer. In this study, mutagenic NMU was detected by HPLC after the transnitrosation of non-mutagenic N-nitrosoproline (NP) to N-methylurea in the presence of thiourea (TU) under acidic
Toine F H Bovee et al.
Mutation research, 778, 1-10 (2015-05-30)
It has previously been demonstrated by others that acetone extracts of Senecio jacobaea (syn. Jacobaea vulgaris, common or tansy ragwort) test positive in the Salmonella/microsome mutagenicity test (Ames test). Pyrrolizidine alkaloids (PAs) are thought to be responsible for these mutagenic

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service