Ammonium hexachloroosmate(IV) - Reagent Grade , CAS No.12125-08-5

CAS: 12125-08-5 Cat. No.: A431595 Formula: H8Cl6N2Os Molecular Weight: 439.02 EC Number: 235-188-5 PubChem CID: 11729867
AVAILABLE TO ORDER
GRADE & PURITY Reagent Grade ? General reagent-grade purity suitable for most laboratory work. Use as a dependable default when no specific higher grade is required.
Synonyms
Ammonium osmium chloride, Osmium(IV)-ammonium chloride
Storage
Room temperature,Argon charged,Desiccated
Shipped In
FedEx DG Service
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Size
Germany (EU)
USA*
Price
Qty
100mg
A431595-100mg
Made to order · 8–12 wks
€58.92
500mg
A431595-500mg
Made to order · 8–12 wks
€73.67
2.5g
A431595-2.5g
—
2 In stock
€312.30
Enter a quantity for the sizes you want to add.
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Why this grade

Reagent Grade Reagent Grade for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature,Argon charged,Desiccated 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.

📚

Literature proof

Cited in 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Ammonium osmium chloride, Osmium(IV)-ammonium chloride
Specifications & Purity
Reagent Grade
Storage
Room temperature,Argon charged,Desiccated
Shipped In
FedEx DG Service
Grade
Reagent Grade
Names and Identifiers
Pubchem Sid508812489
Canonical Smiles[NH4+].[NH4+].Cl[Os--](Cl)(Cl)(Cl)(Cl)Cl
InChIKeySRBXXQDKBKTWOC-UHFFFAOYSA-J
INCHI1S/6ClH.2H3N.Os/h6*1H;2*1H3;/q;;;;;;;;+4/p-4
Isomeric SMILES [NH4+].[NH4+].Cl[Os-2](Cl)(Cl)(Cl)(Cl)Cl
WGK Germany 3
PubChem CID 11729867
UN Number 3290
Packing Group III
Molecular Weight 439.02

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

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClassTransition metal salts
SubclassTransition metal chlorides
Intermediate Tree Nodes Not available
Direct ParentTransition metal chlorides
Alternative Parents Inorganic chloride salts  
Molecular FrameworkNot available
Substituents Transition metal chloride - Inorganic chloride salt - Inorganic salt
DescriptionThis compound belongs to the class of inorganic compounds known as transition metal chlorides. These are inorganic compounds in which the largest halogen atom is Chlorine, and the heaviest metal atom is a transition metal.
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.

11 results found

Lot NumberCertificate TypeDateItem
L2308182Certificate of AnalysisSep 07, 2026 A431595
G2622460Certificate of AnalysisJul 24, 2026 A431595
G2622473Certificate of AnalysisJul 24, 2026 A431595
G2622474Certificate of AnalysisJul 24, 2026 A431595
D2624095Certificate of AnalysisApr 29, 2026 A431595
D2624096Certificate of AnalysisApr 29, 2026 A431595
I2611181Certificate of AnalysisApr 29, 2026 A431595
K2520081Certificate of AnalysisNov 28, 2025 A431595
K2520080Certificate of AnalysisNov 27, 2025 A431595
A2514128Certificate of AnalysisFeb 06, 2025 A431595
F2404087Certificate of AnalysisJun 11, 2024 A431595

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Chemical and Physical Properties
SensitivityHygroscopic
Melt Point(°C)170°C
Molecular Weight439.000 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass439.84 Da
Monoisotopic Mass437.843 Da
Topological Polar Surface Area2.000 Ų
Heavy Atom Count9
Formal Charge0
Complexity62.700
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 Count3
Documents & Articles
Citations of This Product
References
1. Ying Gao, Shuzhen Li, Hongyan He, Tonglin Li, Ting Yu, Rui Liu, Shijun Ni, Zeming Shi.  (2016)  Sensitive determination of osmium in natural waters by inductively coupled plasma mass spectrometry after photochemical vapor generation.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2016.09.017]
2. Ziyu Zhou, Shuo Li, Xiuqian Ding, Kun Zhang, Jie Zhou, Xin Zhou.  (2025)  Aggregation-Induced Photosensitization of Long-Chain-Substituted Osmium Complexes for Lysosomes Targeting Photodynamic Therapy.  ACS Applied Bio Materials,      [PMID:40074675] [10.1021/acsabm.5c00224]
3. Jin-Hua Liu, Xiao-Dong Deng, Jian-Wei Li, Lan-Ping Feng, Thomas J. Algeo.  (2025)  A novel approach to achieve Os isotope equilibration under ambient conditions for negative thermal ionization mass spectrometry (N-TIMS) analysis.  JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,      [PMID:] [10.1039/D5JA00151J]
Solution Calculators
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