Cyanic acid , CAS No.420-05-3

CAS: 420-05-3 Cat. No.: C667762 Molecular Weight: 43.025
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Synonyms
Cyanic acid | Zyansaeure | Cyansaeure | hydroxidonitridocarbon | HOCN | nitridooxocarbonic acid | CHEBI:28024 | hydrogen nitridooxocarbonate | [C(N)OH] | 460E3FHT8O | cyanoalcohol | UNII-460E3FHT8O | acide cyanique | acido cianico | acidum cyanicum | cyan
Storage
Room temperature
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Size
Status
Price
Qty
1mg
C667762-1mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$571.90

$999.90
Save $428.00 (42.80%)
5mg
C667762-5mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$1,999.90

$2,999.90
Save $1,000.00 (33.33%)
Enter a quantity for the sizes you want to add.
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Why this grade

for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Check lot-specific COA for exact specifications.

📋

Quality documents

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

📚

Literature proof

Cited in 4 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Cyanic acid | Zyansaeure | Cyansaeure | hydroxidonitridocarbon | HOCN | nitridooxocarbonic acid | CHEBI:28024 | hydrogen nitridooxocarbonate | [C(N)OH] | 460E3FHT8O | cyanoalcohol | UNII-460E3FHT8O | acide cyanique | acido cianico | acidum cyanicum | cyan
Storage
Room temperature
Product Properties
ALogP0.1
Names and Identifiers
Canonical SmilesC(#N)O
IUPAC Namecyanic acid
InChIKeyXLJMAIOERFSOGZ-UHFFFAOYSA-N
INCHI1S/CHNO/c2-1-3/h3H
Isomeric SMILES C(#N)O
Molecular Weight 43.025
Reaxy-Rn 1732479
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1732479&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
SuperclassOrganic oxygen compounds
ClassOrganic oxoanionic compounds
SubclassCyanates
Intermediate Tree Nodes Not available
Direct ParentCyanates
Alternative Parents Organopnictogen compounds  Organooxygen compounds  Organonitrogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Organic cyanate - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as cyanates. These are organic compounds containing the cyanate functional group with the formula [OCN]-.
External Descriptors one-carbon compound - pseudohalogen oxoacid
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
CA1 Tclin Carbonic anhydrase 1 (6 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
CA2 Tclin Carbonic anhydrase II (17698 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA6 Tclin Carbonic anhydrase VI (993 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA1 Tclin Carbonic anhydrase I (13240 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA9 Tclin Carbonic anhydrase IX (8255 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Ca7 Carbonic anhydrase VII (3 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Ca13 Carbonic anhydrase XIII (322 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA4 Carbonic anhydrase IV (1713 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Carbonic anhydrase (69 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA Alpha carbonic anhydrase (93 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
Molecular Weight43.025 g/mol
XLogP30.100
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass43.0058 Da
Monoisotopic Mass43.0058 Da
Topological Polar Surface Area44.000 Ų
Heavy Atom Count3
Formal Charge0
Complexity31.300
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. Liuxin Li, Chunjia Luo, Xushuai Chen, Na Chu, Le Li, Min Chao, Luke Yan.  (2023)  A Novel Multifunctional Photocatalytic Separation Membrane Based on Single-Component Seaweed-Like g-C3N4.  ADVANCED FUNCTIONAL MATERIALS,  33  (23): (2213974).  [PMID:] [10.1002/adfm.202213974]
2. Yafang Zhang, Shuning Yang, Linsheng Wei, Xiaoyang Zhao, Xiangdong Lu.  (2022)  Degradation characteristics of p-nitrophenol and atenolol by carbon nitride modified by graphene quantum dots.  ENVIRONMENTAL TECHNOLOGY,      [PMID:36205067] [10.1080/09593330.2022.2133640]
3. Yining Zheng, Congcong Wang, Wenjing Fu, Qi An, Cundi Wei, Lina Li.  (2020)  The Preparation of Amorphous Aluminum Oxide Modified g-C3N4 to Improve Photocatalytic Performance in Contaminant Degradation Applications.  Catalysts,  10  (9): (1036).  [PMID:] [10.3390/catal10091036]
4. Liangman Shi, Lunhui Zhu, Jialing Cao, Zhongyuan Zhang, Zhuqing Dai, Dajing Li, Lianfu Zhang, Cheng Yang.  (2025)  A novel mayonnaise product rich in cis-lutein with higher bioaccessibility using natural food ingredients and its textural properties, sensory quality and storage stability.  FOOD CHEMISTRY,      [PMID:40684574] [10.1016/j.foodchem.2025.145579]
Solution Calculators
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