Selenous acid - PrimorTrace™, ≥99.999% metals basis , CAS No.7783-00-8

CAS: 7783-00-8 Cat. No.: S475223 Formula: H2SeO3 Peso molecolare: 128.97 Numero EC: 231-974-7
Disponibile su ordine
GRADE & PURITY PrimorTrace™ ? PrimorTrace™ — Aladdin's trace-metal-analysis line with ultra-low metal background. Use for ICP/AAS trace-metal work where contamination must be minimal. ≥99.999% metals basis
Synonyms
Monohydrated selenium dioxide | Selenium dioxide, monohydrated | Selenous acid | Selenious acid (H2SeO3) | selenige Saeure
Storage
Room temperature
Shipped In
FedEx DG Service
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Size
Germania (EU)
USA*
Price
Qty
10g
S475223-10g
—
2 Disponibile
104,04€
50g
S475223-50g
—
1 Disponibile
312,30€
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Why this grade

PrimorTrace™, ≥99.999% metals basis PrimorTrace™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships FedEx DG Service 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.

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Literature proof

Cited in 12 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Panoramica

Selenous acid is a dibasic acid. It is the oxoacid of selenium and can be formed by adding selenium dioxide gas to water. Selenous acid shows analogy to sulfurous acid. As a crystalline solid, the molecules are arranged in a pyramid and in a solution it behaves as a diprotic acid.

Specifications

Sinonimi
Monohydrated selenium dioxide | Selenium dioxide, monohydrated | Selenous acid | Selenious acid (H2SeO3) | selenige Saeure
Specifiche e purezza
PrimorTrace™, ≥99.999% metals basis
Condizioni di conservazione di stoccaggio
Room temperature
Spedito in
FedEx DG Service
Grado
PrimorTrace™
Purezza
≥99.999% metals basis
Nomi e identificatori
Pubchem Sid528769831
Sorrisi canoniciO[Se](=O)O
IUPAC Nameselenous acid
InChIKeyMCAHWIHFGHIESP-UHFFFAOYSA-N
INCHI1S/H2O3Se/c1-4(2)3/h(H2,1,2,3)
Isomeri SMILES O[Se](=O)O
WGK Germania 3
RTECS VS7175000
Numero UN 3283
Gruppo di imballaggio I
Peso molecolare 128.97

Documentazione

📋 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

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClasseOther mixed metal/non-metal oxoanionic compounds
SubclassNon-metal selenites
Intermediate Tree Nodes Not available
Direct ParentNon-metal selenites
Alternative Parents Inorganic oxides  
Molecular FrameworkNot available
Substituents Non-metal selenite - Inorganic oxide
DescrizioneThis compound belongs to the class of inorganic compounds known as non-metal selenites. These are inorganic non-metallic compounds containing a selenite as its largest oxoanion.
External Descriptors an anion
Struttura 3D
Modello di struttura chimica interattiva





Certificati (CoA, COO, BSE/TSE e tabella di analisi)
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.

9 results found

Lot NumberCertificate TypeDataOggetto
E2516565Certificate of AnalysisApr 27, 2025 S475223
E2516594Certificate of AnalysisApr 27, 2025 S475223
L2425421Certificate of AnalysisDec 09, 2024 S475223
L2425422Certificate of AnalysisDec 09, 2024 S475223
D2430125Certificate of AnalysisApr 18, 2024 S475223
D2430126Certificate of AnalysisApr 18, 2024 S475223
D2430127Certificate of AnalysisApr 18, 2024 S475223
D2430128Certificate of AnalysisApr 18, 2024 S475223
K2426308Certificate of AnalysisApr 18, 2024 S475223
Proprietà chimiche e fisiche
SolubilitàSoluble in water and ethanol.
SensibilitàMoisture sensitive
Punto di fusione (°C)70°C
Peso molecolare128.990 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass129.917 Da
Monoisotopic Mass129.917 Da
Topological Polar Surface Area57.500 Ų
Heavy Atom Count4
Formal Charge0
Complexity26.300
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
Domande frequenti e articoli
Citations of This Product
Riferimenti
1. Min Xu, Xuan Zhang, Baowen Dong, Wenjuan Wang, Zhihuan Zhao.  (2023)  Sustained Release of Hydrogen by PdH-Te Nanozyme for Anti-Inflammatory Therapy Against Atherosclerosis.  PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION,      [PMID:] [10.1002/ppsc.202300135]
2. Xiaoyang Liang, Ping Liu, Wen Li, Long Binh Vong, Tingting Wang, Lujing Geng, Yue Zhou, Siyu Wang, Qiang Lu, Fengping Tan, Xinxing Wang, Nan Li.  (2022)  Dysfunction of DNA repair for boosted tumor cell cycle arrest based on NIR-II biodegradable Te-prussian blue nanorod.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2022.140870]
3. Peng-cheng Du, Zong-cai Tu, Hui Wang, Yue-ming Hu.  (2020)  Mechanism of Selenium Nanoparticles Inhibiting Advanced Glycation End Products.  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:32866004] [10.1021/acs.jafc.0c03229]
4. Bei Kang, Haobo Wang, Huaqing Jing, Yunsheng Dou, Sona Krizkova, Zbynek Heger, Vojtech Adam, Nan Li.  (2024)  “Golgi-customized Trojan horse” nanodiamonds impair GLUT1 plasma membrane localization and inhibit tumor glycolysis.  JOURNAL OF CONTROLLED RELEASE,      [PMID:38789089] [10.1016/j.jconrel.2024.05.025]
5. Haonan Wang, Pengtao Wang, Kaifeng Yu, Xiaofeng Wang, Jinpeng Cao, Pengcheng Jia, Yongzhi Yuan, Ce Liang.  (2024)  Constructing a rapid ion-transport anode interface protective layer for zinc ion batteries to suppress solvation and improve surface electronic structure.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2024.149544]
6. Bin Zhong, Weijun Xu, Hancong Wu, Wei Xian, Ming Gong, Zhenqiang Wu.  (2024)  Differences in slow-release characteristics and release kinetics of three selenium nanoparticles from different synthesis strategies: Revealing the advantages synthesized by Lactiplantibacillus plantarum.  Food Bioscience,      [PMID:] [10.1016/j.fbio.2024.105307]
7. Yan Wang, Shuai Pan, Wenqiong Zhang, Jinfeng Cai, Weijing Han, Zhaoqin Zhu.  (2025)  Photothermal Antibacterial Therapy of Near-Infrared II Region Laser Mediated by Gold Hollow Nanorod.  LANGMUIR,      [PMID:39994506] [10.1021/acs.langmuir.4c05164]
8. Beng Ma, Ying Yu, Jiayi Li, Yunqi Zhang, Bo Sun, Anqi Ji, Kexing Song, Linlin Shi, Hao Hu, Shegan Gao, Haoyan Cheng.  (2024)  Temperature-Sensitive Polymer-Driven Nanomotors for Enhanced Tumor Penetration and Photothermal Therapy.  Small,      [PMID:39163609] [10.1002/smll.202403800]
9. Xinyuan Cui, Cheng Cao, Wanting Hao, Xinni Pan, Yu Cao, Yanfei Fu, Huifang Hao, Yingao Jiao, Shujing Lin, Shengsheng Cui, Ruokun Li, Yanlei Liu, Fuhua Yan.  (2025)  A Nanoplatform of Reversing Tumor Immunosuppressive Microenvironment Based on the NIR-II Gold Hollow Nanorod for the Treatment of Hepatocellular Carcinoma.  Small,      [PMID:40130748] [10.1002/smll.202500144]
10. Weiming You, Jun Feng, Litao Guo, Jin Yan, Siqi Yan.  (2025)  Selenium nanoparticle-delivered MDM2 inhibitor reactivates p53 and reprograms tumor immune microenvironment in colorectal cancer.  Frontiers in Immunology,      [PMID:41246348] [10.3389/fimmu.2025.1684611]
11. Ruru Liu, Qunluo Cao, Heng Miao, Yuting Pei, Guoqing Wei, Yanfen Cheng, Xueran Geng, Junlong Meng, Mingchang Chang, Lijing Xu.  (2026)  Preparation and In Vitro Bioactivity Evaluation of Ganoderma lucidum Melanin-Stabilized Selenium Nanoparticles.  Foods,  15  (2): (250).  [PMID:41596849] [10.3390/foods15020250]
12. Fan Cai, Xuanhan Lai, Ying Yang, Ying Chen, Yongjin He, Shizhong Zheng, Li Li, Chengdeng Chi.  (2026)  Preparation and characterization of starches selenylated with different selenium content.  INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,      [PMID:42419544] [10.1016/j.ijbiomac.2026.153424]
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