HSN Code 29209043: Diethyl phosphite

HSN Code 29209043 represents Diethyl phosphite under GST classification. This code helps businesses identify Diethyl phosphite correctly for billing, taxation, and trade. With HSN Code 29209043, companies can avoid errors in invoices, simplify compliance, and enable hassle-free import/export of Diethyl phosphite.

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Chapter Number	Chapter Name	Sub Chapter Number	Sub Chapter Name	Description of Goods	CGST (%)	SGST (%)	IGST (%)	CESS (%)
29	Organic chemicals	2920	Esters of other inorganicacids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives	Dimethyl phosphite	9%	9%	18%	0%

Description of goods

Dimethyl phosphite

Chapter

29 – Organic chemicals

Sub Chapter

2920 – Esters of other inorganicacids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives

CGST 9%

SGST 9%

IGST 18%

CESS 0%

HSN Code	Description
29201000	Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives
29201010	Phosphorothioic acid, s [2-diethylamino)ethyl] o,o-diethyl e
29201020	Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives
29201100	Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Parathion (ISO) and parathion-methyl (ISO) (methylparathion)
29201910	Phosphorothioic acid, s[2 -(diethyl amino) ethyl] o, o-diethyl ester
29201920	Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Other : Thiophosphoric ester (phosphorothioates) and their salts, their halogenated, sulphonated, nitrated or nitrosated derivatives
29201990	Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : other : Other
29202100	Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Dimethyl phosphite
29202200	Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Diethyl phosphite
29202300	Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Trimethyl phosphite
29202400	Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Triethyl phosphite
29202910	Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other: Dimethyl sulphate
29202920	Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other: Diethyl sulphate
29202930	Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other: Tris (2, 3 Dibromopropyl) phosphate
29202990	Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other: Other
29203000	Endosulfan (ISO)
29209000	Other
29209010	Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - other : diethyl sulphate
29209020	Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - other : dimethyl sulphate
29209030	Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - other : tris (2,3 di-bromopropyl) phosphate
29209041	Trimethyl phosphite
29209042	Triethyl phosphite
29209044	Diethyl phosphite
29209090	Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - other : other
29209099	Other

HSN Code 29201000

Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives

HSN Code 29201010

Phosphorothioic acid, s [2-diethylamino)ethyl] o,o-diethyl e

HSN Code 29201020

Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives

HSN Code 29201100

Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Parathion (ISO) and parathion-methyl (ISO) (methylparathion)

HSN Code 29201910

Phosphorothioic acid, s[2 -(diethyl amino) ethyl] o, o-diethyl ester

HSN Code 29201920

Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Other : Thiophosphoric ester (phosphorothioates) and their salts, their halogenated, sulphonated, nitrated or nitrosated derivatives

HSN Code 29201990

Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : other : Other

HSN Code 29202100

Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Dimethyl phosphite

HSN Code 29202200

Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Diethyl phosphite

HSN Code 29202300

Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Trimethyl phosphite

HSN Code 29202400

Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Triethyl phosphite

HSN Code 29202910

Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other: Dimethyl sulphate

HSN Code 29202920

Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other: Diethyl sulphate

HSN Code 29202930

Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other: Tris (2, 3 Dibromopropyl) phosphate

HSN Code 29202990

Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives: Other: Other

HSN Code 29203000

Endosulfan (ISO)

HSN Code 29209000

Other

HSN Code 29209010

Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - other : diethyl sulphate

HSN Code 29209020

Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - other : dimethyl sulphate

HSN Code 29209030

Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - other : tris (2,3 di-bromopropyl) phosphate

HSN Code 29209041

Trimethyl phosphite

HSN Code 29209042

Triethyl phosphite

HSN Code 29209044

Diethyl phosphite

HSN Code 29209090

Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives - other : other

HSN Code 29209099

Other

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What products are classified under HSN 29209043 ?

It includes Para Anisidines

Can we claim ITC on inputs used to trade Diethyl phosphite?

If your outward supply is taxable, eligible ITC is available subject to general restrictions. For exempt/Nil supplies, reverse credit per Rule 42.

Any common misclassification issue with Diethyl phosphite?

Use the exact HSN and describe the form/grade. For multi‑line invoices, apply the rate per line to avoid wrong tax collection.

Do e‑way bill and e‑invoice apply for Diethyl phosphite?

e‑Way bill is needed above ₹50,000 consignment value (subject to exemptions). e‑Invoicing is turnover‑based (presently AATO > ₹5 crore) for B2B supplies.

How should mixed supplies be billed when Diethyl phosphite is sold with other items?

Use separate invoice lines per HSN and apply the correct rate per line (e.g., Varies for Diethyl phosphite; Nil for exempt items if applicable).

How much GST applies to Diethyl phosphite?

Under HSN 29209043, Diethyl phosphite attracts Varies when sold in taxable form. Describe the exact form on the invoice.

Does packaging or labelling change the GST for Diethyl phosphite?

For food/agri items, GST can be 5% when not fresh/chilled and sold as pre‑packaged & labelled; otherwise often Nil. For non‑food items, rates depend on the specific sub‑heading.

Important Disclaimer

The above does not constitute professional advice or a formal recommendation. We recommend consulting a professional tax consultant before acting on the information contained in this piece of content.

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