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trimethyl phosphite

chemical compound
Class type of: phosphite ester Q153418

Facts

17 properties
Instance of
type of chemical entity
Subclass of
phosphite ester[4]
Associated hazard
trimethyl phosphite exposure[20]
Boiling point
+232[16]
Canonical SMILES
COP(OC)OC[2]
Chemical formula
C₃H₉O₃P[3]
Density
+1.05[12]
Flash point
+82[18]
Has characteristic
Class IC flammable liquid[10]
Has effect
trimethyl phosphite exposure[9]
Has part(s)
phosphorus, carbon, oxygen, hydrogen[5][6][7][8]
Mass
+124.029[13]
Melting point
-108, -78.0[14][15]
NIOSH Pocket Guide ID
0640[11]
Substance control status
Schedule 3 (Chemical Weapons Convention)[21]
Time-weighted average exposure limit
+10[19]
Vapor pressure
+24[17]
🏷️ Also known as
en trimethyl ester of phosphorous acid en trimethyl phosphite en methyl phosphite en trimethoxyphosphine cs Trimethylfosfit de Trimethylphosphit es Fosfito de trimetilo fa تری‌متیل فسفیت fa تری متیل فسفیت fi trimetyylifosfiitti fr triméthylphosphite hi ट्राइमिथाइल फोस्फाइट ja 亜リン酸トリメチル nl trimethylfosfiet pl fosforyn trimetylu ru триметилфосфит zh 亚磷酸三甲酯 zh 亞磷酸三甲酯
🔖 Identifiers · 27
OpenAlex ID
C2777031885
CAMEO Chemicals ID
4723
CAS Registry Number
121-45-9
ChEBI ID
183313
ChEMBL ID
CHEMBL3186364
ChemSpider ID
8159
DSSTOX compound identifier
DTXCID106979
DSSTox substance ID
DTXSID4026979
EC number
204-471-5
ECHA Substance Infocard ID
100.004.065
Freebase ID
/m/03cysnf
HCIS ID
5543
Show all 27 identifiers +15
HSDB ID
1007
ICSC ID
1556
InChI
InChI=1S/C3H9O3P/c1-4-7(5-2)6-3/h1-3H3
InChIKey
CYTQBVOFDCPGCX-UHFFFAOYSA-N
Microsoft Academic ID (discontinued)
2777031885
NMRShiftDB structure ID
10008597
NSC number
6513
OSHA Occupational Chemical Database ID
166
PubChem CID
8472
RTECS number
TH1400000
Römpp online ID
RD-20-02992
SureChEMBL ID
58775, 8428628
UNII
26Q0321ZDG
UniChem compound ID
6783494
ZVG number
492842

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🔗 Connections
Has part(s) 4
hydrogen, oxygen, carbon, phosphorus
Subclass of 1
phosphite ester
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Summary

trimethyl phosphite is a type of chemical entity[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). trimethyl phosphite. Retrieved November 10, 2026, from https://4ort.xyz/entity/trimethyl-phosphite
MLA “trimethyl phosphite.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Nov. 2026, https://4ort.xyz/entity/trimethyl-phosphite.
BibTeX @misc{4ortxyz_trimethyl-phosphite_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{trimethyl phosphite}}, year = {2026}, url = {https://4ort.xyz/entity/trimethyl-phosphite}, note = {Accessed: 2026-11-10}}
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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 10w ago · Carn · 2026-08-31 view diff on Wikidata ↗
    Substance control status → Schedule 3 (Chemical Weapons Convention)
    "Created claim: Substance control status: Schedule 3 (Chemical Weapons Convention), #quickstatements; #temporary_batch_1788168090577"
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