HSN code 29313100

Tariff item in chapter 29 — Organic chemicals

HSN code

29313100

Dimethyl methylphosphonate

Classification

Code type	HSN — Harmonized System of Nomenclature
Level	Tariff item (8 digits)
Section	Section VI — Chemical and allied products
Chapter 29	Organic chemicals
Heading 2931	Organic chemicals – other organo-inorganic compounds
Tariff item 29313100	Dimethyl methylphosphonate

Other codes under 2931

HSN code	Description
`293100`	Organic chemicals – other organo-inorganic compounds
`293110`	Tetramethyl lead and tetraethyl lead
`293120`	Tributyltin compounds
`29313200`	Dimethyl propylphosphonate
`29313300`	Diethyl ethylphosphonate
`29313400`	Sodium 3-(trihydroxysilyl)propyl methylphosphonate
`29313500`	2, 4, 6-Tripropyl-1, 3, 5, 2, 4, 6-trioxatriphosphinane 2, 4, 6-trioxide
`29313600`	(5-Ethyl-2-methyl-2-oxido-1, 3, 2-dioxaphosphinan-5-yl)methyl methylphosphonate
`29313700`	Bis[(5-ethyl-2-methyl-2-oxido-1, 3, 2-dioxaphosphinan-5-yl) methyl] methylphosphonate
`29313800`	Salt of methylphosphonic acid and (aminoiminomethyl)urea (1 1)
`29313900`	Organic chemicals – other organo-inorganic compounds – other
`293141`	Dimethyl methylphosphonate
`293142`	Dimethyl propylphosphonate
`293143`	Diethyl ethylphosphonate
`293144`	Methylphosphonic acid
`293145`	Salt of methylphosphonic acid and (aminoiminomethyl) urea (1: 1)
`293146`	2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide
`293147`	(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate
`293148`	3,9-dimethyl-2,4,8,10-tetraoxa-3,9- diphosphaspiro [5.5] undecane 3,9-dioxide
`293149`	Organic chemicals – other organo-inorganic compounds – other
`293151`	Methylphosphonic dichloride
`293152`	Propylphosphonic dichloride
`293153`	O-(3-chloropropyl) o-[4-nitro-3-(trifluoromethyl) phenyl] methylphosphonothionate
`293154`	Trichlorfon (ISO)
`293159`	Organic chemicals – other organo-inorganic compounds – other
`293190`	Organic chemicals – other organo-inorganic compounds – other

Using HSN 29313100 in GST

On GST invoices, a business with annual turnover up to ₹5 crore must show at least the first 4 digits (2931) on B2B invoices, and a business above ₹5 crore must show 6 digits (293131) on all invoices. The full 8-digit code is used for imports and exports.

The GST rate depends on the exact goods or service and any conditions in the rate notification, so it is not listed here. Check the official CBIC GST rate finder, then work out the tax with the GST calculator or make a bill with the GST invoice generator.

Frequently asked questions

What is HSN code 29313100?

HSN code 29313100 is the tariff item for: Dimethyl methylphosphonate.

What is the GST rate for HSN 29313100?

GST rates are set by CBIC rate notifications and can depend on conditions, so check the CBIC GST rate finder for HSN 29313100 before invoicing.

How many digits of HSN 29313100 should I write on my invoice?

Up to ₹5 crore turnover: at least 4 digits (2931) on B2B invoices. Above ₹5 crore: 6 digits (293131) on all invoices.