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15663

Sigma-Aldrich

Boric acid

BioUltra, for molecular biology, ≥99.5% (T)

Linear Formula:
H3BO3
CAS Number:
Molecular Weight:
61.83
EC Number:
MDL number:
eCl@ss:
38120104
PubChem Substance ID:
NACRES:
NA.25

Quality Level

grade

for molecular biology

vapor pressure

2.6 mmHg ( 20 °C)

product line

BioUltra

assay

≥99.5% (T)

form

powder or crystals

application(s)

DNA purification: suitable
RNA purification: suitable

impurities

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected
<0.05% non-volatile substances in MeOH/HCl

loss

≤0.5% loss on drying, 20 °C (HV)

pH

3.6-4.4 (25 °C, saturated solution in H2O)

mp

160 °C (dec.) (lit.)

solubility

H2O: 1 M, clear, colorless (hot)

density

1.49 g/cm3 at 23 °C

anion traces

chloride (Cl-): ≤5 mg/kg
phosphate (PO43-): ≤5 mg/kg
sulfate (SO42-): ≤5 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

OB(O)O

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.015
λ: 280 nm Amax: 0.010

InChI

1S/BH3O3/c2-1(3)4/h2-4H

InChI key

KGBXLFKZBHKPEV-UHFFFAOYSA-N

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Related Categories

Application

Boric acid can be used to study molecular biology, DNA and RNA purification, biological buffers and molecular biology reagents. Boric acid has been used to test the toxic effects of boron on growth and antioxidant system parameters of maize (Zea mays L.) roots. Boric acid has also been used to study the effect of time period after boric acid injection on (10)B absorption in different regions of adult male rat′s brain.

Other Notes

Running buffer component with methylmercuric hydroxide gels; Buffer component in DNA digest analysis with capillary electrophoresis

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Repr. 1B

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK Germany

WGK 1

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

A Paulus et al.
Electrophoresis, 14(1-2), 27-35 (1993-01-01)
DNA digest analysis with polymer-filled capillaries in capillary electrophoresis is described. The samples analyzed consisted of commercially available standards including a 100 base pair ladder with repeating units up to 2000 base pairs. Three DNA digests covered the most common...
Electrophoresis in agarose and acrylamide gels.
R C Ogden et al.
Methods in enzymology, 152, 61-87 (1987-01-01)
Jing Li et al.
American journal of physiology. Cell physiology, 306(10), C943-C960 (2014-03-22)
The human solute carrier (SLC26) family of anion transporters consists of 10 members (SLCA1-11, SLCA10 being a pseudogene) that encode membrane proteins containing ~12 transmembrane (TM) segments with putative N-glycosylation sites (-NXS/T-) in extracellular loops and a COOH-terminal cytosolic STAS...
Akie Shimotohno et al.
Plant & cell physiology, 56(4), 620-630 (2015-02-12)
Boron, an essential micronutrient, is transported in roots of Arabidopsis thaliana mainly by two different types of transporters, BORs and NIPs (nodulin26-like intrinsic proteins). Both are plasma membrane localized, but have distinct transport properties and patterns of cell type-specific accumulation...
Yona Goldshmit et al.
Oncotarget, 5(18), 8602-8613 (2014-09-28)
The three oncogenes, ErbB receptors, Ras proteins and nucleolin may contribute to malignant transformation. Previously, we demonstrated that nucleolin could bind both Ras protein and ErbB receptors. We also showed that the crosstalk between the three proteins facilitates anchorage independent...

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