---
title: "HSN Code for 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo | HSN 29310057 GST Rate"
description: "Find HSN and GST Rates for 29310057 related to 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo with BUSY Accounting - The reliable source for HSN and GST details in India."
canonical: "https://busy.in/hsn/hsn-29310057/"
---

# HSN Code 29310057: 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo

- [Section 06: Guide to HSN Section 06](https://busy.in/hsn/section-06/)
- [Chapter 29: Organic Chemicals](https://busy.in/hsn/chapter-29/)
- [Sub-chapter 2931: Other organo-inorganic compounds](https://busy.in/hsn/sub-chapter-2931/)

## GST rates

| Description | CGST | SGST | IGST | CESS |
| --- | --- | --- | --- | --- |
| Phosphonous acid- methyl diethyl ester | 9% | 9% | 18% | 0% |

## Frequently asked questions

### What products are classified under HSN 29310057 ?

It includes Phosphonic acid ethyl-diethyl ester

### Do e‑way bill and e‑invoice apply for 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo?

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.

### Any common misclassification issue with 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo?

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

### How much GST applies to 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo?

Under HSN 29310057, 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo attracts Varies when sold in taxable form. Describe the exact form on the invoice.

### Does packaging or labelling change the GST for 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo?

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.

### Can we claim ITC on inputs used to trade 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo?

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

### How should mixed supplies be billed when 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo is sold with other items?

Use separate invoice lines per HSN and apply the correct rate per line (e.g., Varies for 1 Propanaminium N,N,N Trimethyl 3-[1-Oxo; Nil for exempt items if applicable).