ChemicalBook >> CAS DataBase List >>1-PENTYN-3-OL

1-PENTYN-3-OL

CAS No.
4187-86-4
Chemical Name:
1-PENTYN-3-OL
Synonyms
PENT-1-YN-3-OL;Pentynol;1-PENTYN-3-OL;1-pentylyne-3-ol;1-Pentyn-3-ol>1-Pentyn-3-ol 98%;1-Pentyn-3-ol,98%;(3S)-1-pentyn-3-ol;ETHYL ETHYNYL CARBINOL;Ethyl ethynyl carbinol,99%
CBNumber:
CB6457789
Molecular Formula:
C5H8O
Molecular Weight:
84.12
MDL Number:
MFCD00004572
MOL File:
4187-86-4.mol
MSDS File:
SDS
Last updated:2026-05-28 02:20:30

1-PENTYN-3-OL Properties

Melting point -24.1°C (estimate)
Boiling point 124 °C
Density 0.975 g/mL at 25 °C(lit.)
vapor density 1 (vs air)
refractive index n20/D 1.434(lit.)
Flash point 85 °F
storage temp. Sealed in dry,2-8°C
pka 13.28±0.20(Predicted)
form clear liquid
color Colorless to Yellow to Green
Water Solubility Slightly soluble in water.
BRN 1098409
InChI 1S/C5H8O/c1-3-5(6)4-2/h1,5-6H,4H2,2H3
InChIKey LBSKEFWQPNVWTP-UHFFFAOYSA-N
SMILES CCC(O)C#C
CAS DataBase Reference 4187-86-4(CAS DataBase Reference)
EWG's Food Scores 1
UNSPSC Code 12352100

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Skull and Crossbones (GHS06)
GHS02,GHS06
Signal word  Danger
Hazard statements  H226-H301-H311-H331
Precautionary statements  P210-P233-P240-P241+P242+P243-P264-P270-P301+P310+P330-P303+P361+P353-P370+P378-P403+P235-P405-P501-P261-P280-P301+P310-P311-P260-P280f-P307+P311
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  T
Risk Statements  10-23/24/25
Safety Statements  16-36/37/39-45
RIDADR  UN 1986 3/PG 3
WGK Germany  3
RTECS  SC4758500
HazardClass  3
PackingGroup  III
HS Code  29052900
Storage Class 3 - Flammable liquids
Hazard Classifications Acute Tox. 3 Dermal
Acute Tox. 3 Inhalation
Acute Tox. 3 Oral
Flam. Liq. 3
Limited Quantities 5.0 L (1.3 gallons) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
NFPA 704
3
2 0

1-PENTYN-3-OL price More Price(27)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical P0069 1-Pentyn-3-ol >97.0%(GC) 4187-86-4 10g $185 2026-04-30 Buy
Biosynth EAA18786 Pent-1-yn-3-ol 4187-86-4 25g $295 2026-06-04 Buy
Apolloscientific OR2042 Pent-1-yn-3-ol >98% 4187-86-4 1g $21 2026-06-04 Buy
Apolloscientific OR2042 Pent-1-yn-3-ol >98% 4187-86-4 5g $28 2026-06-04 Buy
Apolloscientific OR2042 Pent-1-yn-3-ol >98% 4187-86-4 25g $131 2026-06-04 Buy
Product number Packaging Price Buy
P0069 10g $185 Buy
EAA18786 25g $295 Buy
OR2042 1g $21 Buy
OR2042 5g $28 Buy
OR2042 25g $131 Buy

1-PENTYN-3-OL Chemical Properties,Uses,Production

Chemical Properties

CLEAR YELLOW LIQUID

Uses

1-Pentyn-3-ol is used as a pharmaceutical intermediate.

1-PENTYN-3-OL Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 115)Suppliers
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Jia Xing Isenchem Co.,Ltd 0573-85285100 18627885956 isenchem@163.com China 9389 66
Nanjing Chemlin Chemical Co., Ltd 025-83697070 13770331960 info@chemlin.com.cn China 16305 64
China DongFan Chemical Co.,LTD 86-0571-85151182 China 5681 66
Shanghai Youd Chemical Technology Co., Ltd. 021-37910092 15821801668 cong44@126.com China 286 58
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80

View Lastest Price from 1-PENTYN-3-OL manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-Pentyn-3-ol pictures 2026-08-07 1-Pentyn-3-ol
4187-86-4
$1.00-35.00 1KG 99% 200000KG Shaanxi Dideu Medichem Co. Ltd
  • 1-Pentyn-3-ol pictures
  • 1-Pentyn-3-ol
    4187-86-4
  • $1.00-35.00
  • 99%
  • Shaanxi Dideu Medichem Co. Ltd
ETHYL ETHYNYL CARBINOL 1-PENTYN-3-OL Pentynol 1-Pentyn-3-ol,98% (3S)-1-pentyn-3-ol Ethyl ethynyl carbinol,99% 1-Pentyn-3-ol 98% 1-Pentyn-3-ol> 1-Pentyn-3-ol (6CI, 7CI, 8CI, 9CI, ACI) 1-pentylyne-3-ol PENT-1-YN-3-OL 4187-86-4 HCCCHOHCH2CH3 C2H5CHOHC8801CH Organic Building Blocks Terminal Building Blocks Alkynes Acetylenic Alcohols & Their Derivatives Acetylenes Acetylenes Acetylenic Alcohols & Their Derivatives Alkynes Organic Building Blocks Terminal Building Blocks Chemical Synthesis Organic Building Blocks