10,12-Pentacosadiynoic acid - ≥97% , CAS No.66990-32-7

CAS: 66990-32-7 Cat. No.: P111068 Molecular Weight: 374.6 Beilstein Registry Number: 4189973 EC Number: 614-006-1
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
10,12-Pentacosadiynoic acid, >=97.0% (HPLC) | 10-12-Pentacosadiynoic acid | pentacosa-10,12-diynoic acid | 10,12-Pentacosadiynoic acid | AKOS001016092 | D92058 | FT-0607183 | AMY3274 | Z56760628 | -;10,12-Pentacosadiynoic acid | DTXSID20337082 | AS-59405
Storage
Store at 2-8°C,Protected from light,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
P111068-250mg
2

$22.90

$34.90
Save $12.00 (34.38%)
1g
P111068-1g
2

$72.90

$109.90
Save $37.00 (33.67%)
5g
P111068-5g
1

$273.90

$410.90
Save $137.00 (33.34%)
10g
P111068-10g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$492.90

$739.90
Save $247.00 (33.38%)
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Protected from light,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 10 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
10, 12-Pentacosadiynoic acid, >=97.0% (HPLC) | 10-12-Pentacosadiynoic acid | pentacosa-10, 12-diynoic acid | 10, 12-Pentacosadiynoic acid | AKOS001016092 | D92058 | FT-0607183 | AMY3274 | Z56760628 | -;10, 12-Pentacosadiynoic acid | DTXSID20337082 | AS-59405
Specifications & Purity
≥97%
Storage
Store at 2-8°C, Protected from light, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Canonical SmilesCCCCCCCCCCCCC#CC#CCCCCCCCCC(=O)O
IUPAC Namepentacosa-10,12-diynoic acid
InChIKeyZPUDRBWHCWYMQS-UHFFFAOYSA-N
INCHI1S/C25H42O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25(26)27/h2-12,17-24H2,1H3,(H,26,27)
Isomeric SMILES CCCCCCCCCCCCC#CC#CCCCCCCCCC(=O)O
WGK Germany 3
Molecular Weight 374.6
Beilstein 4189973
Reaxy-Rn 4189973
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4189973&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassLipids and lipid-like molecules
ClassFatty Acyls
SubclassFatty acids and conjugates
Intermediate Tree Nodes Not available
Direct ParentVery long-chain fatty acids
Alternative Parents Unsaturated fatty acids  Straight chain fatty acids  Monocarboxylic acids and derivatives  Carboxylic acids  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Very long-chain fatty acid - Unsaturated fatty acid - Straight chain fatty acid - Monocarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as very long-chain fatty acids. These are fatty acids with an aliphatic tail that contains at least 22 carbon atoms.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

10 results found

Lot NumberCertificate TypeDateItem
F2220365Certificate of AnalysisDec 10, 2025 P111068
F2220533Certificate of AnalysisDec 10, 2025 P111068
C2531082Certificate of AnalysisMar 21, 2025 P111068
C2531083Certificate of AnalysisMar 21, 2025 P111068
C2531084Certificate of AnalysisMar 21, 2025 P111068
C2531085Certificate of AnalysisMar 21, 2025 P111068
C2531086Certificate of AnalysisMar 21, 2025 P111068
C2531087Certificate of AnalysisMar 21, 2025 P111068
F2220399Certificate of AnalysisMar 13, 2024 P111068
F2220400Certificate of AnalysisMar 13, 2024 P111068
Chemical and Physical Properties
SolubilitySlightly soluble in water
Sensitivitylight sensitive;Air sensitive
Melt Point(°C)62-65°C
Molecular Weight374.600 g/mol
XLogP39.400
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count19
Exact Mass374.318 Da
Monoisotopic Mass374.318 Da
Topological Polar Surface Area37.300 Ų
Heavy Atom Count27
Formal Charge0
Complexity466.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Linhui Fu, Chen Hou.  (2023)  A polydiacetylene-based smart cellulose aerogel functionalized by ZnO/MoS2 heterojunction for simultaneous visual detection and photocatalytic degradation of gaseous VOCs.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2023.123512]
2. Tao Chunxu, Wang Junyan, Zhu Ying, Ding Chao, Shen Zhuoyue, Sun Danni, Cao Shanshan, Jiang Xinrong, Li Yaqi, Liu Chang, Zhang Qi, Li Shijie, Zhang Xinyan, Shi Qiaoqiao, Kong Dezhao.  (2024)  A highly sensitive fluorescence biosensor for aflatoxins B1 detection based on polydiacetylene liposomes combined with exonuclease III-assisted recycling amplification.  MICROCHIMICA ACTA,  191  (7): (1-12).  [PMID:38877314] [10.1007/s00604-024-06482-2]
3. Dafaallah Albashir, Hongyun Lu, Mostafa Gouda, Dev Raj Acharya, Umar Abdulbaki Danhassan, Abdelmoneim Bakur, Ying Shi, Qihe Chen.  (2024)  A novel polydiacetylene-functionalized fibrinogen paper-based biosensor for on-spot and rapid detection of Staphylococcus aureus.  FOOD CHEMISTRY,      [PMID:38959795] [10.1016/j.foodchem.2024.140291]
4. Chongze Yue, Miaoshi Wang, Zhilong Zhou, Yunze You, Guiying Wang, Dongran Wu.  (2024)  Cellulose-based intelligent packaging films with antibacterial, UV-blocking, and biodegradable properties for shrimp freshness monitoring.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2024.150975]
5. Huan Xing, Yuxin Song, Liang Ma, Fengxia Wang, Mingfang Zhang, Zhonghao Li, Zherui Wan, Xiaoxu Cui, Guang Yang.  (2024)  Preparation of Bis-Polydiacetylene with Reversible Thermochromism and High Sensitivity toward Pb2+ Detection.  ACS Applied Polymer Materials,      [PMID:] [10.1021/acsapm.4c02266]
6. Yunpeng Zhang, Peng Gao, Rui Guan, Haoran Zheng, Chuanren He, Longxiang Tao, Bingjie Zhao, Jun Yin.  (2025)  Reversible Shape-Color Synchronous Dual-Response Flexible Poly(vinyl chloride)-Based Composite Film via Star-Shaped Diacetylene-Modified Poly(ε-caprolactone).  ACS Applied Polymer Materials,      [PMID:] [10.1021/acsapm.4c03880]
7. Chunyu Song, Xuan Zhang, Chenglong Qiu, Yong Yang.  (2025)  Symmetric Bis-polyacetylene Linked with Aromatic Amides Targeting Medium-high Temperature Thermal Monitor.  PHYSICAL CHEMISTRY CHEMICAL PHYSICS,      [PMID:40970390] [10.1039/D5CP02223A]
8. Chenxi Zhang, Chenlu He.  (2025)  Reversible thermochromism in violet-phase polydiacetylene derivatives triggered by ultraviolet photopolymerization.  PHYSICAL CHEMISTRY CHEMICAL PHYSICS,      [PMID:40985120] [10.1039/D5CP02612A]
9. Chunyu Song, Jiahao Huang, Chenglong Qiu, Yong Yang.  (2025)  Reversible thermochromic modulation for polydiacetylene derivatives with amide and aromatic groups targeting thermal monitor.  REACTIVE & FUNCTIONAL POLYMERS,      [PMID:] [10.1016/j.reactfunctpolym.2025.106357]
10. Nianyue Zhang, Shuilong Kang, Meng Zhang, Sifan You, Xiang Hu, Guangyuan Feng, Kunal S. Mali, Steven De Feyter, Oleksandr Ivasenko, Lifeng Chi, Yuan Fang.  (2025)  Toward Unified Mechanism of Bias-Dependent Switching in Reactive Self-Assembly Systems.  ACS Nano,      [PMID:40607774] [10.1021/acsnano.5c03607]
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