Structure
Identifiers
CAS:
7697-37-2IUPAC name: nitric acid
Formula:
HNO3MW: 63.013 g/mol
Structural identifiers
SMILES: [N+](=O)(O)[O-]
InChIKey: GRYLNZFGIOXLOG-UHFFFAOYSA-N
InChI: InChI=1S/HNO3/c2-1(3)4/h(H,2,3,4)
Specifications
Commercial
Inventory: to order
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Computed descriptors aggregated from PubChem for CAS 7697-37-2.
| XLogP | 0.2 |
|---|---|
| Complexity | 24 |
| Exact mass | 62.995642894 g/mol |
| Formal charge | 0 |
| Heavy atom count | 4 |
| Monoisotopic mass | 62.995642894 g/mol |
| H-bond donor count | 1 |
| Rotatable bond count | 0 |
| H-bond acceptor count | 3 |
| Topological polar surface area (TPSA) | 66.1 Ų |
China regulatory compliance
Not listed in hazardous / restricted catalogues
Sourcing & suppliers — nitric acid
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Who supplies nitric acid in China?
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Which suppliers provide a COA or analysis report for nitric acid?
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Frequently asked questions
Curated by ChemExact's editorial team and reviewed by chemistry and API procurement specialists. Each factual claim is traceable to the cross-source citation graph at the bottom of the page.
What is nitric acid (CAS 7697-37-2)?
nitric acid is a chemical compound with molecular formula HNO3 and molecular weight ≈ 63.01 g/mol. Its CAS Registry Number is 7697-37-2. Nitric acid is a nitrogen oxoacid of formula HNO3 in which the nitrogen atom is bonded to a hydroxy group and by equivalent bonds to the remaining two oxygen atoms. It has a role as a reagent and a protic solvent. It is a conjugate acid of a nitrate.
What chemical does CAS 7697-37-2 refer to?
CAS Registry Number 7697-37-2 refers to nitric acid, molecular formula HNO3, molecular weight ≈ 63.01 g/mol. The CAS number is verifiable on PubChem, CAS Common Chemistry and ECHA. To source nitric acid, submit an RFQ on this page to be matched with ChemExact's verified supplier network, with batch COAs.
What is the molecular formula and weight of nitric acid (CAS 7697-37-2)?
The molecular formula of nitric acid is HNO3, and the molecular weight is 63.01 g/mol. This data has been cross-verified against PubChem, ChEMBL and CAS Common Chemistry.
What are the SMILES and InChIKey of nitric acid?
The canonical SMILES of nitric acid is `[N+](=O)(O)[O-]`, and the InChIKey is `GRYLNZFGIOXLOG-UHFFFAOYSA-N`. These international identifiers are reusable in PubChem, ChemDraw, RDKit and most cheminformatics toolchains.
What are the common synonyms of nitric acid?
Common synonyms of nitric acid include: NITRIC ACID, 7697-37-2, Azotic acid, Aqua fortis, Salpetersaeure, Nital, HNO3, Acide nitrique — 20 synonyms in total. The full list (sourced from PubChem) is available in the page header under "Show synonyms".
What is the current price of nitric acid (CAS 7697-37-2)?
ChemExact does not publish public price lists for nitric acid. No verified supplier has linked this SKU yet — submit an RFQ below and our BD team will return 3+ comparative quotes within 48–72 hours, each with batch traceability and a COA. For background market context only (non-binding), industry bulletins such as ICIS or national commodity indices may be consulted independently.
How has nitric acid price trended recently?
nitric acid pricing follows upstream feedstocks, export demand, and plant turnaround cycles. ChemExact does not quote spot indices on this page. For a procurement decision, submit an RFQ — suppliers respond with current lot pricing and lead time. Independent market bulletins (ICIS, national commodity indices) may be used only as non-binding background reference.
Who are the major manufacturers of nitric acid in China?
China-based manufacturers of nitric acid (CAS 7697-37-2) are matched on demand by the ChemExact business team. Submit an RFQ or contact bd@chemexact.com — a BD advisor will shortlist candidates from regulated directories (e.g. China MEM hazardous-chemicals registration at https://whpdj.mem.gov.cn/) with full provenance on each dossier. Supplier discovery is handled through ChemExact's verified network, not third-party marketplaces.
Which suppliers in East / North / South China stock nitric acid?
Regional supply of nitric acid (CAS 7697-37-2) is matched on demand through ChemExact's own verified network. Submit an RFQ stating your target region (East / North / South China), or reach the ChemExact business team at bd@chemexact.com — a BD advisor will match verified producers from regulated enterprise registries and return comparable quotes with COAs. When ChemExact's geo-browse directory is enabled, city-level supplier pages list credentials and last review dates.
Who are the largest global producers of nitric acid?
International supply of nitric acid (CAS 7697-37-2) is arranged by the ChemExact business team based on export credentials. Submit an RFQ or contact bd@chemexact.com — a BD advisor will match qualified exporters and return batch COAs, trade terms, and Incoterms. For regulatory due diligence, consult ECHA REACH (CAS 7697-37-2), US EPA CompTox, or Japan NITE — these are compliance references, not procurement marketplaces.
What grades of nitric acid are commercially available?
nitric acid is typically supplied in the following grades: Industrial / Technical (≥ 99%, bulk feedstock), Reagent (AR/CP/GR, ≥ 99.5%, lab analytics), HPLC / GC (≥ 99.9%, chromatography & spectroscopy), and where applicable a pharmaceutical grade meeting USP/EP/JP. Grade-specific specs are confirmed via the supplier's SDS and CoA. ChemExact lets verified suppliers attach hash-validated CoA/SDS files on their brand product pages.
Where can I download the SDS / MSDS for nitric acid (CAS 7697-37-2)?
Authoritative SDS sources: ① PubChem 'Safety and Hazards' section — https://pubchem.ncbi.nlm.nih.gov/compound/944; ② US NIH Hazardous Substances Data Bank (HSDB); ③ ECHA REACH dossier; ④ Supplier-attached SDS on verified ChemExact brand pages. ChemExact does not host SDS files directly (to avoid version drift); all SDS links route to source.
Related research papers
Open-access publications referencing nitric acid (CAS 7697-37-2), sourced from OpenAlex.
Short-Term Effects of Nose-Only Cigarette Smoke Exposure on Glutathione Redox Homeostasis, Cytochrome P450 1A1/2 and Respiratory Enzyme Activities in Mice Tissues
2013 ESH/ESC Guidelines for the management of arterial hypertension
Ultrastructural Characterization of the Lower Motor System in a Mouse Model of Krabbe Disease
2021 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure
Minimal information for studies of extracellular vesicles 2018 (MISEV2018): a position statement of the International Society for Extracellular Vesicles and update of the MISEV2014 guidelines
2018 ESC/ESH Guidelines for the management of arterial hypertension
Authoritative external references
Every chemistry property, compliance flag and literature claim on this page is traceable to the authoritative external sources below. Click any link to verify on the publishing institution's original page.
- ChEMBL · CHEMBL1352 ↗ — EMBL-EBI · ChEMBL
- NIST WebBook · Nitric acid ↗ — NIST · Standard Reference Data Program
- OpenAlex papers ↗ — OurResearch · OpenAlex
- China compliance (IECSC) ↗ — MEE · China IECSC
- PubChem PUG-View · CID 944 ↗ — National Library of Medicine · PubChem
- PubChem · CID 944 ↗ — National Library of Medicine · PubChem
Content & data statement.
Commercial information on this page (CAS, HS, EC, purity grade, indicative price band, lead time, inventory status,
REACH and FDA flags) is captured from supplier-controlled documents by the ChemExact editorial desk and reviewed
on a recurring cycle. Chemistry data — structures, synonyms, physico-chemical properties, hazard classifications and
the cited literature — is reconciled against internationally recognised authorities (including but not limited to
PubChem, CAS Common Chemistry, ECHA, China MEM, ChEMBL and OpenAlex) and cross-checked by our editors.
Disclaimer: This page is intended as a procurement-side technical reference and does not constitute legal, regulatory, or medical advice. Lot-level conformity is determined by the supplier-signed CoA and SDS. Transport, storage and handling must follow the applicable jurisdictional regulations and product SDS. If you spot a discrepancy with an authoritative source, please contact our editorial team — we review correction requests within five business days.
Disclaimer: This page is intended as a procurement-side technical reference and does not constitute legal, regulatory, or medical advice. Lot-level conformity is determined by the supplier-signed CoA and SDS. Transport, storage and handling must follow the applicable jurisdictional regulations and product SDS. If you spot a discrepancy with an authoritative source, please contact our editorial team — we review correction requests within five business days.
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