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Merck

52411

Heptafluorobutyric acid

suitable for ion chromatography, ≥99.5% (GC)

Synonym(s):

Edman Reagent No. 3, HFBA, Perfluorobutyric acid

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About This Item

Linear Formula:
CF3CF2CF2COOH
CAS Number:
Molecular Weight:
214.04
UNSPSC Code:
41115710
NACRES:
NB.21
PubChem Substance ID:
EC Number:
206-786-3
Beilstein/REAXYS Number:
1426882
MDL number:

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Product Name

Heptafluorobutyric acid, suitable for ion chromatography, ≥99.5% (GC)

InChI key

YPJUNDFVDDCYIH-UHFFFAOYSA-N

InChI

1S/C4HF7O2/c5-2(6,1(12)13)3(7,8)4(9,10)11/h(H,12,13)

SMILES string

OC(=O)C(F)(F)C(F)(F)C(F)(F)F

vapor density

7 (vs air)

vapor pressure

~10 mmHg ( 25 °C)

description

anionic

assay

≥99.5% (GC)

form

liquid

shelf life

limited shelf life, expiry date on the label

technique(s)

ion chromatography: suitable

refractive index

n20/D 1.3 (lit.)

bp

120 °C/755 mmHg (lit.)

density

1.645 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg
Ba: ≤0.01 mg/kg
Bi: ≤0.01 mg/kg
Ca: ≤2 mg/kg
Cd: ≤0.01 mg/kg
Co: ≤0.01 mg/kg
Cr: ≤0.01 mg/kg
Cu: ≤0.01 mg/kg
Fe: ≤0.1 mg/kg
K: ≤0.5 mg/kg
Li: ≤0.01 mg/kg
Mg: ≤1 mg/kg
Mn: ≤0.01 mg/kg
Mo: ≤0.01 mg/kg
Na: ≤3 mg/kg
Ni: ≤0.01 mg/kg
Pb: ≤0.01 mg/kg
Sr: ≤0.01 mg/kg
Zn: ≤0.05 mg/kg

Quality Level

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1 of 4

This Item
7724949540H1006
assay

≥99.5% (GC)

assay

≥99.0% (GC)

assay

-

assay

≥98%

technique(s)

ion chromatography: suitable

technique(s)

-

technique(s)

ion pair chromatography: suitable

technique(s)

-

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

form

liquid

form

liquid

form

liquid

form

liquid

density

1.645 g/mL at 25 °C (lit.)

density

1.645 g/mL at 25 °C (lit.)

density

-

density

1.674 g/mL at 20 °C (lit.)

shelf life

limited shelf life, expiry date on the label

shelf life

-

shelf life

-

shelf life

-

Application

Heptafluorobutyric acid (HFBA) may be used to cleave glycylserine bonds, in an experimental protocol done in order to sequence glycine-rich protein from lizard claw.[1]

Other Notes

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signalword

Danger

hcodes

Hazard Classifications

Skin Corr. 1A

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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


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Sequence of a glycine-rich protein from lizard claw: unusual dilute acid and heptafluorobutyric acid cleavages.
Inglis A
Proteins: Structure, Function, and Genetics, 757-764 (1987)
Ulrika Eriksson et al.
Environmental science and pollution research international, 20(11), 7940-7948 (2013-04-17)
Diet and drinking water are suggested to be major exposure pathways for perfluoroalkyl substances (PFASs). In this study, food items and water from Faroe Islands sampled in 2011/2012 were analyzed for 11 perfluoroalkyl carboxylic acids (PFCAs) and 4 perfluoroalkane sulfonic
Jan Busch et al.
Environmental pollution (Barking, Essex : 1987), 158(5), 1467-1471 (2010-01-08)
Polyfluoroalkyl compounds (PFCs) are widely used in industry and consumer products. These products could end up finally in landfills where their leachates are a potential source for PFCs into the aqueous environment. In this study, samples of untreated and treated
Sławomir Wybraniec et al.
Journal of chromatography. A, 1216(41), 6890-6899 (2009-09-08)
Polar betacyanin pigments together with betaxanthins from ripe cactus fruits of Hylocereus polyrhizus (Cactaceae) were fractionated by means of preparative ion-pair high-speed countercurrent chromatography (IP-HSCCC) also using the elution-extrusion (EE) approach for a complete pigment recovery. HSCCC separations were operated
Marta Llorca et al.
The Science of the total environment, 431, 139-150 (2012-06-12)
Water has been identified as one of the main routes of human exposure to perfluoroalkyl substances (PFASs). This work assessed the presence of 21 PFASs along the whole water cycle using a new fast and cost effective analytical method based

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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