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Pharmaceutical Secondary Standard; Certified Reference Material

Butyl alcohol, n-Butanol
Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level


certified reference material
pharmaceutical secondary standard


traceable to USP 1081807

vapor density

2.55 (vs air)


current certificate can be downloaded

autoignition temp.

649 °F

expl. lim.

11.2 %


HPLC: suitable
gas chromatography (GC): suitable

refractive index

n20/D 1.399 (lit.)


116-118 °C (lit.)


−90 °C (lit.)


0.81 g/mL at 25 °C (lit.)


pharmaceutical (small molecule)



storage temp.


SMILES string




InChI key


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General description

Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards. 1-Butanol is a potential fuel substitute to gasoline. It is also a feedstock used to produce chemicals. It is produced via two pathways, the synthetic 2-ketoacid pathway and CoA-dependent pathway. It can also be produced by fermentation of biomass-derived carbohydrates.


These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.


To see an example of a Certificate of Analysis for this material enter LRAA9022 in the slot below. This is an example certificate only and may not be the lot that you receive.

Signal Word


Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids



Flash Point(F)

95.0 °F - Pensky-Martens closed cup

Flash Point(C)

35 °C - Pensky-Martens closed cup

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Yaxing Wang et al.
Microbial cell factories, 13, 151-151 (2014-11-05)
Recent efforts demonstrated the potential application of cyanobacteria as a "microbial cell factory" to produce butanol directly from CO2. However, cyanobacteria have very low tolerance to the toxic butanol, which limits the economic viability of this renewable system. Through a
Jie Yao et al.
Nature communications, 5, 5670-5670 (2014-11-29)
Layer-structured two-dimensional nanomaterials are a family of materials with strong covalent bonding within layers and weak van der Waals interaction between layers, whose vertical thickness can be thinned down to few nanometer and even single atomic layer. Bismuth chalcogenides are
Melanie Y Denzer et al.
Chemosensory perception, 7(2), 91-101 (2014-06-03)
Odorant pens are used by medical practitioners and researchers to assess olfactory dysfunction. Despite their routine use, there are currently no data on the gas-phase odorant concentrations released from the pen tips or whether these concentrations scale linearly with the
R Cipriano et al.
Oncogene, 33(25), 3298-3306 (2013-08-06)
Despite the progress made in targeted anticancer therapies in recent years, challenges remain. The identification of new potential targets will ensure that the arsenal of cancer therapies continues to expand. FAM83B was recently discovered in a forward genetic screen for
Chun Wong Aaron Chan et al.
Nature communications, 5, 5787-5787 (2014-12-20)
Lindlar catalysts comprising of palladium/calcium carbonate modified with lead acetate and quinoline are widely employed industrially for the partial hydrogenation of alkynes. However, their use is restricted, particularly for food, cosmetic and drug manufacture, due to the extremely toxic nature


GC Analysis of Class 3 Residual Solvents on OVI-G43

Butyl methyl ether; Acetic acid; 2-Butanone; Ethyl acetate; Tetrahydrofuran; 1-Butanol; Isopropyl acetate; Heptane; Propyl acetate; 3-Methylbutanol; 4-Methyl-2-pentanone; Isobutyl acetate; Butyl acetate; Dimethyl sulfoxide; Anisole; Cumene


GC Analysis of Alcohols on PAG

-Butanol; 2-Methyl-2-butanol; 2-Methyl-1-butanol; 3-Pentanol; 1-Butanol; 2-Methyl-1-propanol; 2-Pentanol, 98%; 3-Methyl-1-butanol; 1-Propanol

GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10

Protocol for GC Analysis of Class 3 Residual Solvents on SUPELCOWAX® 10

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