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ChemicalBook >> CAS DataBase List >>1-PYRENEBUTYRIC ACID

1-PYRENEBUTYRIC ACID

CAS No.
3443-45-6
Chemical Name:
1-PYRENEBUTYRIC ACID
Synonyms
PyBA;Pyrenebutyric acid;NSC 30833;1-pyrenebutyrate;Pyrenebutyric aci;Pyren-1-buttersure;1-PYRENEBUTYRIC ACID;pyrene-1-butyric acid;1-Pyrenylbutyric acid;1-PYRENEBUTANOIC ACID
CBNumber:
CB0402161
Molecular Formula:
C20H16O2
Molecular Weight:
288.34
MDL Number:
MFCD00004141
MOL File:
3443-45-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-09 15:12:03
Product description Number Pack Size Price
1-Pyrenebutyric acid 97% 257354 1g $110
1-Pyrenebutyric acid 97% 257354 5g $338
4-(1-Pyrenyl)-butyric acid for synthesis 8.41269 1g $105
1-Pyrenebutyric Acid >98.0%(GC)(T) P1213 1g $75
1-Pyrenebutyric Acid >98.0%(GC)(T) P1213 5g $225
More product size

1-PYRENEBUTYRIC ACID Properties

Melting point 184-186 °C (lit.)
Boiling point 370.57°C (rough estimate)
Density 1.1742 (rough estimate)
refractive index 1.4800 (estimate)
storage temp. Store below +30°C.
solubility DMSO (Slightly), Methanol (Slightly, Heated)
form Crystalline Powder
pka 4.76±0.10(Predicted)
color Pale yellow or yellow-beige
Appearance off white solid
Water Solubility Partially soluble in water.
BRN 2140554
InChI InChI=1S/C20H16O2/c21-18(22)6-2-3-13-7-8-16-10-9-14-4-1-5-15-11-12-17(13)20(16)19(14)15/h1,4-5,7-12H,2-3,6H2,(H,21,22)
InChIKey QXYRRCOJHNZVDJ-UHFFFAOYSA-N
SMILES C1(CCCC(O)=O)=C2C3=C4C(C=C2)=CC=CC4=CC=C3C=C1
CAS DataBase Reference 3443-45-6(CAS DataBase Reference)
FDA UNII CT0DC64E8Q
EPA Substance Registry System 1-Pyrenebutanoic acid (3443-45-6)
UNSPSC Code 12352106
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  36/37/38-50
Safety Statements  26-36-61
RIDADR  UN 3077 9/PG 3
WGK Germany  3
TSCA  TSCA listed
HS Code  2916 39 90
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
0
2 0

1-PYRENEBUTYRIC ACID price More Price(70)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 257354 1-Pyrenebutyric acid 97% 3443-45-6 1g $110 2026-04-30 Buy
Sigma-Aldrich 257354 1-Pyrenebutyric acid 97% 3443-45-6 5g $338 2026-04-30 Buy
Sigma-Aldrich 8.41269 4-(1-Pyrenyl)-butyric acid for synthesis 3443-45-6 1g $105 2023-06-20 Buy
TCI Chemical P1213 1-Pyrenebutyric Acid >98.0%(GC)(T) 3443-45-6 1g $75 2026-04-30 Buy
TCI Chemical P1213 1-Pyrenebutyric Acid >98.0%(GC)(T) 3443-45-6 5g $225 2026-04-30 Buy
Product number Packaging Price Buy
257354 1g $110 Buy
257354 5g $338 Buy
8.41269 1g $105 Buy
P1213 1g $75 Buy
P1213 5g $225 Buy

1-PYRENEBUTYRIC ACID Chemical Properties,Uses,Production

Description

Pyrenylbutyric acid is a derivative of pyrene hydrocarbon with a free carboxylic acid function. The reagent is useful as a control for experiments with other reactive pyrene derivatives such as pyrene NHS ester and pyrene azide. Carboxylic acid function can be activated by carbodiimides and other activating reagents.

Chemical Properties

Pale yellow or yellow-beige crystalline powder

Uses

1-Pyrenebutyric Acid is a fluorescent probe used to study proteins, lipids, nucleic acids and other biological systems. The fluorescence lifetime of 1-Pyrenebutyric Acid depends on local oxygen and free radical concentration.

General Description

1-Pyrenebutyric acid (PBA) is a conjugated polymer that has a large π system and a carboxylic group. It is majorly used in surface functionalization. It has a high fluorescence efficiency and stability that make it useful in optoelectronic applications.

Synthesis

4-OXO-4-PYREN-1-YL-BUTYRIC ACID

7499-60-7

1-PYRENEBUTYRIC ACID

3443-45-6

General procedure for the synthesis of 1-pyrenylbutyric acid from 4-oxo-4-(pyren-1-yl)butyric acid: 1 g (2.78 mmol) of 4-oxo-4-(pyren-1-yl)butyric acid was dissolved in 30 mL of diethylene glycol, to which were added 0.59 g (10 mmol) of hydrazine hydrate and 0.56 g (10 mmol) of KOH.The reaction mixture was heated and refluxed for 2 h. The reaction mixture was subsequently poured into ice hydrochloric acid (25%) to produce a yellow precipitate. The solid was collected by filtration and recrystallized from ethanol to give 570 mg (71% yield) of 4-(pyrene-1-yl)butanoic acid. Molecular formula C20H16O2, molecular weight 288 g/mol. EI-MS: m/z (%) = 289 (16) [MH+], 288 (62) [M], 216 (20), 215 (100), 213 (11). High-resolution EI-MS (C20H16O2): calculated value 288.1150; measured value 288.1150.1H-NMR ([D6]-DMSO): δ (ppm) = 8.50-7.92 (9H, m, CHarom), 3.36 (2H, m, CH2C16H9), 2.41 (2H, m, CH2CO2H), 2.04 (2H, m, CH2CO2H), 2.04 (2H, m, CH2CO2H). 2.04 (2H, m, CH2).1H-NMR (CDCl3): δ (ppm) = 8.32-7.86 (9H, m, CHarom), 3.42 (2H, t, CH2C16H9, 3JHH = 7.57 Hz), 2.51 (2H, t, CH2CO2H, 3JHH = 7.00 Hz), 2.23 (2H, m, CH2, 3JHH = 7.00 Hz), 2.23 (2H, m, CH2, 3JHH = 3JHH). m, CH2, 3JHH = 7.57Hz, 3JHH = 7.00Hz).13C-NMR ([D6]-DMSO): δ (ppm) = 174.74 (1CO), 136.39-123.39 (9 CHarom, 7 Carom), 33.64-26.98 (1CH2CO2H, 2CH2).13C- NMR (CDCl3): δ (ppm) = 177.48 (1CO), 135.25-123.04 (9 CHarom, 7 Carom), 33.21-26.46 (1CH2CO2H, 2CH2).IR (KBr): ν (cm-1) = 3447w, 3037w, 2950m, 2934w, 2874w, 1695s, ν (cm-1) 2874w, 1695s, 1431w, 1275m, 1206m, 918w, 846s, 711w.

Purification Methods

Crystallise the butyric acid from *benzene, EtOH, EtOH/water (7:3 v/v) or *C6H6/AcOH. Dry it over P2O5. [Chu & Thomas J Am Chem Soc 108 6270 1986, Beilstein 9 IV 2731.]

References

[1] Patent: US7301043, 2007, B2. Location in patent: Page/Page column 7-8
[2] ACS Catalysis, 2016, vol. 6, # 11, p. 7398 - 7408
[3] New Journal of Chemistry, 2008, vol. 32, # 8, p. 1438 - 1448
[4] Journal of the American Chemical Society, 1941, vol. 63, p. 1682,1684
[5] Justus Liebigs Annalen der Chemie, 1937, vol. 531, p. 1,128

Abs/Em Maxima

343; 326; 313; 276; 265; 242; 234/377; 397 nm

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View Lastest Price from 1-PYRENEBUTYRIC ACID manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-PYRENEBUTYRIC ACID pictures 2026-07-15 1-PYRENEBUTYRIC ACID
3443-45-6
$2860.00 1KG 98% 1-10mt Baoji Guokang Healthchem Co., Ltd.
1-PYRENEBUTYRIC ACID pictures 2026-07-10 1-PYRENEBUTYRIC ACID
3443-45-6
1kg 98 1000kgs Shaanxi Dideu New Materials Co. Ltd
1-Pyrenebutyric Acid pictures 2026-07-02 1-Pyrenebutyric Acid
3443-45-6
$2.20-8.80 1kg 99% 100kg ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
1-PYRENEBUTYRIC ACID, FOR FLUORESCENCE 1-Pyrenebutyricacid,97% pyrene-1-butyric acid Pyrene-3-butyric acid. 1-Pyrenylbutyric acid 4-(Pyren-1-yl)butyric acid 4-(Pyrene-1-yl)butanoic acid 4-(Pyrene-3-yl)butanoic acid 4-(3-Pyrenyl)bytyric acid 1-Pyrenebutyric acid, 97+% 1GR 1-Pyrenebutyric acid, 97+% 5GR 4-(1-Pyrene)butanoic Acid 4-(1-Pyrene)butyric Acid 4-(1-Pyrenyl)butanoic Acid NSC 30833 γ-(3-Pyrenyl)butyric Acid 4-(pyren-6-yl)butanoic acid Pyrenebutyric aci 1-Pyrenebutyric acid 97% 1-Pyrenebutyric acid≥ 98% (HPLC) 4-(1-Pyrenyl)-butyric acid for synthesis 1-PYRENEBUTYRIC ACID 1-PYRENEBUTANOIC ACID 4-(PYRENE-1-YL)-N-BUTYRIC ACID 4-(1-PYRENYL)BUTYRIC ACID 1-pyrenebutyrate Pyren-1-buttersure 4-(1-pyrenyl)butanoate 1-PyrenebutyricAcid> 1-Pyrenebutyric Acid98% PyBA Pyrenebutyric acid 3443-45-6 C20H16O2 Pyrenes CARBOXYLIC ACID Fluorescent Labels Fluorescent Probes, Labels, Particles and Stains Detection Other Fluorescent Labels Biochemicals and Reagents BioChemical Pyrenes
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