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HSN Code 2921: Amine- function compounds

HSN 2921 covers amine- function compounds. Notification 9/2025-Central Tax (Rate) names this heading in 2 entries, at 5% / 18%. The basic customs duty in the Customs Tariff is 7.5%. Export policy: Free; RoDTEP 0.7–0.8% of FOB value. The heading has 86 eight-digit tariff items.

Checked against the official files on 2 October 202686 tariff itemsChapter 29 · Organic chemicals
GST rate5% / 18%

The heading is named in 2 entries. The description of the goods decides the rate.

Notfn 9/2025-CT (Rate) · 2 entries
Basic customs duty7.5%

Standard rate on all 86 tariff items. Includes the Finance Act 2025 changes.

Customs Tariff · First Schedule · Ch. 29
Import policyCheck Schedule 1

The item-wise import policy line is not shown on this page.

ITC(HS) 2022 · Schedule 1
Export policy · RoDTEPFree · 0.7–0.8%

No export authorisation needed for any line. RoDTEP continues up to 31 December 2026.

Sch. 2 Export Policy · Appendix 4R
Tariff items

All 8-Digit Codes Under HSN 2921

Classify the goods at eight digits before you quote a rate: the duty, the export policy and the RoDTEP rate are fixed line by line.

Tariff itemDescriptionBasic customs dutyExport policyRoDTEP
2921 11 10Dimethyl formideMethylamine, di- or trimethylamine and their salts7.5%Free0.7%
2921 11 90OtherMethylamine, di- or trimethylamine and their salts7.5%Free0.7%
2921 12 002-(N, N-Dimethylamino)ethylchloride hydrochloride7.5%Free0.7%
2921 13 002-(N, N-Diethylamino)ethylchloride hydrochloride7.5%Free0.7%
2921 14 002-(N, N-Diisopropylamino)ethylchloride hydrochloride7.5%Free0.7%
2921 19 112-Chloro N,N-Diisopropyl ethylamine7.5%Finance Act 2025——
2921 19 122-Chloro N,N-Dimethyl ethanamine7.5%Finance Act 2025——
2921 19 19Other7.5%Finance Act 2025——
2921 19 30Chlormequat chloride (CCC)7.5%Finance Act 2025——
2921 19 90OtherOther7.5%Free0.7%
2921 21 00Ethylenediamine and its salts7.5%Free0.7%
2921 22 00Hexamethylenediamine and its salts7.5%Free0.7%
2921 29 10Hexamethylene tetramine (hexamine) not put up as fuel or medicamentOther7.5%Free0.7%
2921 29 20Trimethylene triniframineOther7.5%Free0.7%
2921 29 90OtherOther7.5%Free0.7%
2921 30 10CyclohexylamineCyclanic, cyclenic or cycloterpenic mono or polyamines, and their derivatives; salts thereof7.5%Free0.7%
2921 30 90OtherCyclanic, cyclenic or cycloterpenic mono or polyamines, and their derivatives; salts thereof7.5%Free0.7%
2921 41 10AnilineAniline and its salts7.5%Free0.7%
2921 41 20Aniline hydrochlorideAniline and its salts7.5%Free0.7%
2921 41 306-Benzyladenine, beflubutamid7.5%Finance Act 2025——
2921 41 90OtherAniline and its salts7.5%Free0.7%
2921 42 11Para chloroanilinePara chloroaniline, ortho chloro paranitroaniline, dichloroaniline, 2, 6-dichloro paranitroaniline, 2-4-5-trichloroaniline7.5%Free0.7%
2921 42 12Ortho chloro paranitroanilinePara chloroaniline, ortho chloro paranitroaniline, dichloroaniline, 2, 6-dichloro paranitroaniline, 2-4-5-trichloroaniline7.5%Free0.7%
2921 42 13DichloroanilinePara chloroaniline, ortho chloro paranitroaniline, dichloroaniline, 2, 6-dichloro paranitroaniline, 2-4-5-trichloroaniline7.5%Free0.7%
2921 42 142, 6-dichloro paranitroanilinePara chloroaniline, ortho chloro paranitroaniline, dichloroaniline, 2, 6-dichloro paranitroaniline, 2-4-5-trichloroaniline7.5%Free0.7%
2921 42 152 - 4 - 5 trichloroanilinePara chloroaniline, ortho chloro paranitroaniline, dichloroaniline, 2, 6-dichloro paranitroaniline, 2-4-5-trichloroaniline7.5%Free0.7%
2921 42 21N-benzyl-N-ethylanilineN-benzyl-N-ethylaniline, N,N-diethylaniline, N,N-dimethylaniline, meta nitroaniline, para nitroaniline7.5%Free0.7%
2921 42 22N,N-diethylanilineN-benzyl-N-ethylaniline, N,N-diethylaniline, N,N-dimethylaniline, meta nitroaniline, para nitroaniline7.5%Free0.7%
2921 42 23N,N-dimethylanilineN-benzyl-N-ethylaniline, N,N-diethylaniline, N,N-dimethylaniline, meta nitroaniline, para nitroaniline7.5%Free0.7%
2921 42 24N-ethyl anilineN-benzyl-N-ethylaniline, N,N-diethylaniline, N,N-dimethylaniline, meta nitroaniline, para nitroaniline7.5%Free0.7%
2921 42 25Meta nitroanilineN-benzyl-N-ethylaniline, N,N-diethylaniline, N,N-dimethylaniline, meta nitroaniline, para nitroaniline7.5%Free0.7%
2921 42 26Para nitroanilineN-benzyl-N-ethylaniline, N,N-diethylaniline, N,N-dimethylaniline, meta nitroaniline, para nitroaniline7.5%Free0.7%
2921 42 312-amino 3, 5 xylne sulphonic acid2-amino 3, 5 xylne sulphonic acid, Benzyl ethyl aniline sulphuric acid, metanillic acid (meta amino benzene sulphonic acid)…7.5%Free0.7%
2921 42 32Benzyl ethyl aniline sulphonic acid2-amino 3, 5 xylne sulphonic acid, Benzyl ethyl aniline sulphuric acid, metanillic acid (meta amino benzene sulphonic acid)…7.5%Free0.7%
2921 42 33Metanillic acid (meta amino benzene sulphonic acid)2-amino 3, 5 xylne sulphonic acid, Benzyl ethyl aniline sulphuric acid, metanillic acid (meta amino benzene sulphonic acid)…7.5%Free0.7%
2921 42 34Sulphanillic acid (para aminobenzene sulphonic acid para aniline sulphonic acid)2-amino 3, 5 xylne sulphonic acid, Benzyl ethyl aniline sulphuric acid, metanillic acid (meta amino benzene sulphonic acid)…7.5%Free0.7%
2921 42 35Ethyl hydroxy ethylaniline2-amino 3, 5 xylne sulphonic acid, Benzyl ethyl aniline sulphuric acid, metanillic acid (meta amino benzene sulphonic acid)…7.5%Free0.7%
2921 42 36Methyl dopa (1-alpha methyl-3, 4- dihydroxyphenylaniline)2-amino 3, 5 xylne sulphonic acid, Benzyl ethyl aniline sulphuric acid, metanillic acid (meta amino benzene sulphonic acid)…7.5%Free0.7%
2921 42 50Fluchloralin, pendimethalin, trifluralin7.5%Finance Act 2025——
2921 42 90Other2-amino 3, 5 xylne sulphonic acid, Benzyl ethyl aniline sulphuric acid, metanillic acid (meta amino benzene sulphonic acid)…7.5%Free0.7%
2921 43 10N,N-diethyl toluidineToluidines and their derivatives; salts thereof7.5%Free0.7%
2921 43 20N,N-dimethyl toluidineToluidines and their derivatives; salts thereof7.5%Free0.7%
2921 43 30Ortho toluidineToluidines and their derivatives; salts thereof7.5%Free0.7%
2921 43 40Meta toluidineToluidines and their derivatives; salts thereof7.5%Free0.7%
2921 43 50Para toluidineToluidines and their derivatives; salts thereof7.5%Free0.7%
2921 43 602-Chloro-5-toluidine-4-sulphonic acidToluidines and their derivatives; salts thereof7.5%Free0.7%
2921 43 702-Chloro-4-toluidine-5-sulphonic acid (sodium salt)Toluidines and their derivatives; salts thereof7.5%Free0.7%
2921 43 804-Toluidine-3-sulphonic acidToluidines and their derivatives; salts thereof7.5%Free0.7%
2921 43 91Ethafluralin7.5%Finance Act 2025——
2921 43 99Other7.5%Finance Act 2025——
2921 44 10DiphenylamineDiphenylamine and its derivatives; salts thereof7.5%Free0.7%
2921 44 90OtherDiphenylamine and its derivatives; salts thereof7.5%Free0.7%
2921 45 11Alpha naphthylamineAlpha naphthylamine, Phenyl alpha naphthylamine, Phenyl beta naphthylamine, Amino F-acid, Aminolineli-R-acid, Sodium naphthionate7.5%Free0.7%
2921 45 12Phenyl alpha naphthylamineAlpha naphthylamine, Phenyl alpha naphthylamine, Phenyl beta naphthylamine, Amino F-acid, Aminolineli-R-acid, Sodium naphthionate7.5%Free0.7%
2921 45 13Phenyl beta naphthylamineAlpha naphthylamine, Phenyl alpha naphthylamine, Phenyl beta naphthylamine, Amino F-acid, Aminolineli-R-acid, Sodium naphthionate7.5%Free0.7%
2921 45 14Amino F-acidAlpha naphthylamine, Phenyl alpha naphthylamine, Phenyl beta naphthylamine, Amino F-acid, Aminolineli-R-acid, Sodium naphthionate7.5%Free0.7%
2921 45 15Aminolineli-R-acidAlpha naphthylamine, Phenyl alpha naphthylamine, Phenyl beta naphthylamine, Amino F-acid, Aminolineli-R-acid, Sodium naphthionate7.5%Free0.7%
2921 45 16Sodium naphthionateAlpha naphthylamine, Phenyl alpha naphthylamine, Phenyl beta naphthylamine, Amino F-acid, Aminolineli-R-acid, Sodium naphthionate7.5%Free0.7%
2921 45 21Bronner’s acid (2-naphthylamine-6-sulphonic acid)Bronner’s acid (2-naphthylamine-6-sulphonic acid), cleve’s acid (1-naphthylamine-6- sulphonic acid), epsilon acid (1-…7.5%Free0.7%
2921 45 22Cleve’s acid (1-naphthylamine-6-sulphonic acid)Bronner’s acid (2-naphthylamine-6-sulphonic acid), cleve’s acid (1-naphthylamine-6- sulphonic acid), epsilon acid (1-…7.5%Free0.7%
2921 45 23Epsilon acid (1-naphthylamine-3,8-disulphonic acid)Bronner’s acid (2-naphthylamine-6-sulphonic acid), cleve’s acid (1-naphthylamine-6- sulphonic acid), epsilon acid (1-…7.5%Free0.7%
2921 45 24Koch’s acid (1-naphthylamine-3,6,8-trisulphonic acid)Bronner’s acid (2-naphthylamine-6-sulphonic acid), cleve’s acid (1-naphthylamine-6- sulphonic acid), epsilon acid (1-…7.5%Free0.7%
2921 45 25Laurent’s acid (1-naphthylamine-5-sulphonic acid)Bronner’s acid (2-naphthylamine-6-sulphonic acid), cleve’s acid (1-naphthylamine-6- sulphonic acid), epsilon acid (1-…7.5%Free0.7%
2921 45 26Tobias acid (2-naphthylamine-1-sulphonic acid)Bronner’s acid (2-naphthylamine-6-sulphonic acid), cleve’s acid (1-naphthylamine-6- sulphonic acid), epsilon acid (1-…7.5%Free0.7%
2921 45 31Naphthionic acid (1-naphthylamine-4-sulphonic acid)Naphthionic acid (1-naphthylamine-4- sulphonic acid), Para tolyl peri acid (para tolyl-1-naphthylamine 8-sulphonic acid), phenyl…7.5%Free0.7%
2921 45 32Para tolyl peri acid (para tolyl-1-naphthylamine- 8-sulphonic acid)Naphthionic acid (1-naphthylamine-4- sulphonic acid), Para tolyl peri acid (para tolyl-1-naphthylamine 8-sulphonic acid), phenyl…7.5%Free0.7%
2921 45 33Phenyl peri acid (phenyl-1-naphthylamine- 8-sulphonic acid)Naphthionic acid (1-naphthylamine-4- sulphonic acid), Para tolyl peri acid (para tolyl-1-naphthylamine 8-sulphonic acid), phenyl…7.5%Free0.7%
2921 45 90OtherNaphthionic acid (1-naphthylamine-4- sulphonic acid), Para tolyl peri acid (para tolyl-1-naphthylamine 8-sulphonic acid), phenyl…7.5%Free0.7%
2921 46 00Amfetamine (INN), benzfetamine (INN) dexamfetamine (INN), etilamfetamine (INN) fencamfamin(INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof7.5%Free0.7%
2921 49 10XylidinesOther7.5%Free0.7%
2921 49 20Para cumidineOther7.5%Free0.7%
2921 49 90OtherOther7.5%Free0.7%
2921 51 10O-phenylenediamineo-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof7.5%Free0.7%
2921 51 20M-phenylenediamine (m-di aminobenzene)o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof7.5%Free0.7%
2921 51 30P-phenylenediamineo-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof7.5%Free0.7%
2921 51 40O-diaminotolueneo-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof7.5%Free0.7%
2921 51 50M-diaminotolueneo-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof7.5%Free0.7%
2921 51 60P-diaminotolueneo-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof7.5%Free0.7%
2921 51 70Para-amino acetanilideo-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof7.5%Free0.7%
2921 51 80Meta toluylene diamineo-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof7.5%Free0.7%
2921 51 90Othero-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof7.5%Free0.7%
2921 59 10BenzidineOther7.5%Free0.8%
2921 59 20Benzidine dihydrochlorideOther7.5%Free0.8%
2921 59 303, 3 dichlorobenzidine dihydrochloride sulphateOther7.5%Free0.8%
2921 59 40Diaminostilbene 2,2-disulphonic acid (Dasda)Other7.5%Free0.8%
2921 59 90OtherOther7.5%Free0.8%

Basic customs duty is the standard rate in the First Schedule to the Customs Tariff Act. An exemption notification or a trade agreement can lower the duty actually payable. RoDTEP is a percentage of FOB value for exports from the domestic tariff area.

GST

GST Rate on HSN 2921

GST on goods is fixed by the entries of Notification No. 9/2025-Central Tax (Rate), in force from 22 September 2025 and amended up to 30 April 2026. The rate shown is the total: half is central tax and half is State tax on a sale within a State, and the whole is charged as IGST on an inter-State sale or an import. Read the description in the entry, not only the code: the same heading can sit in two Schedules.

GST rateEntryCodes namedGoods covered by the entry
5%Schedule I, S. No. 22229 or 3808 93Gibberellic acid (chapter-wide entry)
18%Schedule II, S. No. 3629All organic chemicals other than giberellic acid (chapter-wide entry)
18%Schedule II, S. No. 639Any ChapterGoods which are not specified in Schedule I, III, IV, V, VI or VII (residual entry)

Goods of this heading that fall under no specific entry take the residual entry, unless they are exempt under the exemption notification issued with the rate notification.

Import

Customs Duty on HSN 2921

An import pays three things: basic customs duty at the tariff rate, social welfare surcharge at 10% of that duty (unless exempted for the goods), and IGST at the GST rate on the value plus both duties. A registered importer takes credit of the IGST.

Basic customs duty at
Social welfare surcharge, 10% of the duty
IGST at on value plus both
Total duty and tax
As a share of the value

Standard rates only: no exemption notification, anti-dumping or safeguard duty, or trade-agreement rate is applied, and the surcharge is taken at 10% although some goods are exempted from it. A registered importer takes credit of the IGST.

Duty changed by the Finance Act 2025

One or more tariff lines of this heading were substituted by the Finance Act 2025. The table above already shows the amended rate for those lines.

Whether an import is Free, Restricted or Prohibited is set line by line in ITC(HS) Schedule 1 (Import Policy), read with its General Notes on standards, quarantine and packaging. That policy line is not reproduced on this page; check it before you place the order.

Export

Export Policy and RoDTEP for HSN 2921

Under Schedule 2 of ITC(HS) 2022 the 86 tariff items are marked: 78 Free, 8 not shown in the Schedule text. “Free” means no export authorisation is needed; a Restricted item needs one from DGFT, and an STE item moves only through the named State trading enterprise.

RoDTEP is notified for 78 of the 86 tariff items, at 0.7–0.8% of FOB value (Appendix 4R, for exports from the domestic tariff area). The scheme continues up to 31 December 2026 at the rates in force on 30 September 2026.

The rate was cut by half for one month in 2026 and then restored. A shipping bill dated from 23 February to 22 March 2026 carries the reduced rate.

  1. Current RoDTEP schedule takes effectAppendix 4R and 4RE notified by Notification 32/2024-25.
  2. All rates and caps limited to 50%Notification 60/2025-26, with immediate effect.
  3. Full rates restoredNotification 66/2025-26 and its corrigendum: the rates of 22 February 2026 apply again from 23 March.
  4. Scheme continued to 30 September 2026Notification 74/2025-26, rates unchanged.
  5. Scheme continued to 31 December 2026Notification 41/2026-27: rates and caps as on 30 September 2026 continue.
Not shown on this page
  • The item-wise import policy (Free, Restricted or Prohibited) of ITC(HS) Schedule 1. Check it before you place an order.
  • Exemption notifications, anti-dumping and safeguard duties, and preferential rates under trade agreements. The duty shown is the tariff rate.
  • The GST exemption notification. Goods exempt under it pay no GST even if the heading is named in a rate entry.

Official documents behind this page

  1. Notification No. 9/2025-Central Tax (Rate), 17 September 2025GST rate Schedules I to VI, in force from 22 September 2025, as amended by Notification No. 19/2025-Central Tax (Rate) of 31 December 2025 (Schedule VII omitted from 1 February 2026) and No. 01/2026 of 30 April 2026.
  2. Customs Tariff, First ScheduleCBIC Customs Tariff as on 30 June 2024, with the First Schedule amendments of the Finance (No. 2) Act, 2024, the Finance Act, 2025 and the Finance Act, 2026 applied.
  3. ITC(HS) 2022, Schedule 2, Export PolicyDGFT: the export policy and policy condition of each tariff item.
  4. Appendix 4R and Appendix 4RE, RoDTEP ScheduleDGFT, with effect from 10 October 2024 (Notification No. 32/2024-25); the 2026 changes are in Notifications 60, 66 and 74 of 2025-26 and 41 of 2026-27.

Disclaimer: This guide is general information based on the law and notifications in force when it was last updated. It is not professional advice for your case — rates, thresholds and due dates change, so check the current position with the official source before you act on it.

People also ask

Questions, answered

Short, direct answers to the 5 questions readers ask most on this topic.

Notification No. 9/2025-Central Tax (Rate), in force from 22 September 2025, names heading 2921 at 5% / 18%. The rate depends on the description in the entry, so match your goods to the entry before invoicing. Goods of the heading not covered by a specific entry take the residual 18% entry unless exempt.

The basic customs duty in the First Schedule to the Customs Tariff Act is 7.5%. Social welfare surcharge at 10% of the basic duty and IGST at the GST rate are added on import. An exemption notification or a trade agreement can reduce the duty actually payable.

Under ITC(HS) 2022, Schedule 2, the tariff items of heading 2921 are marked: 78 Free, 8 not shown in the Schedule text. Free items need no export authorisation. Restricted items need an authorisation from DGFT, and prohibited items cannot be exported.

Appendix 4R lists 78 tariff items of heading 2921 at 0.7–0.8% of FOB value. The RoDTEP scheme continues up to 31 December 2026 under DGFT Notification No. 41/2026-27.

Heading 2921 has 86 eight-digit tariff items in the Customs Tariff, from 2921 11 10 to 2921 59 90. GST returns and shipping documents use these eight-digit codes.