HSN code directory

HSN Code 2933: Heterocyclic compounds with nitrogen hetero-atom (s) only

Heterocyclic compounds with nitrogen hetero-atom (s) only


All 8-digit HSN codes under this heading

HSN codeDescription
29331100Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: phenazone (antipyrin) and its derivates
29331910Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: - other: 3-carboxy (para sulpho-phenyl)-5- pyrazolone
29331920Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: - other: 1 (2,5- dichloro-4-sulpho phenyl)-3-methyl-5-pyrazolone
29331930Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: - other: 3-methyl-1(4-sulpho-o-toluyl-5-pyrazolone)
29331940Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: - other: phenylmethylpyrazolone
29331950Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: - other: 1-phenyl-5-pyrazolone-3-carboxylic acid ethylester
29331960Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: - other: 1-(m-sulphophenyl)-3-pyrazolone
29331970Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: - other: analgin
29331980Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: - other: oxyphenbutazone
29331990Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: - other: other
29332100Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: hydantoin and its derivatives
29332910Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: - other: tinidazole
29332920Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: - other: metronidazole, metronidiazole benzoate
29332930Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: - other: mebendazole
29332940Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: - other: dimetridazole
29332950Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: - other: albendazole
29332990Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: - other: other
29333100Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: pyridine and its salts
29333200Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: piperidine and its salts
29333300Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: bromazepam (inn), methylphenidate (inn), pentazocine (inn), phencyclindine (inn) (pcp), pipradrol (inn), propiram (inn); salts thereof
29333911Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: derivatives of pyridine: amino pyridine
29333912Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: derivatives of pyridine: alpha picoline (2-methyl pyridine)
29333913Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: derivatives of pyridine: gamma picoline (4-methyl pyridine)
29333914Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: derivatives of pyridine: chloropheniramine maleate
29333915Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: - derivatives of pyridine:
29333916Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: derivatives of pyridine: beta picoline (3-methyl pyridine)
29333917Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: derivatives of pyridine: morpholine
29333918Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: derivatives of pyridine: lutidine (dimethyl pyridine)
29333919Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: derivatives of pyridine: other
29333920Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: piperidine and its derivatives
293339301-azabicyclo(2,2,2)octan-3-ol
29333940Benzene acetic acid,alpha - hydroxy- alpha-phenyl, 1-azabicyclo[2.2.2] oct-3-yl ester
29333990Compounds containg an unfused pyridine ring (whether or not hydrogenated) in the structure: - other: other
29334100Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused:
29334900Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused: other
29335200Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: malonylurea (barbituric acid) and its salts
29335300Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: allobarbital (inn), amobarbital (inn), barbital (inn), butalbital (inn), butobarbital (inn), cyclobarbital (inn), methylphenobarbital (inn), pentobarbital (inn), secbutabarbital (inn), phenobarbital (inn), secobarbital (inn), and vinylbital (inn); salts thereof
29335400Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: other derivatives of malonylurea (barbituric acid); salts thereof
29335500Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: loprazolam (inn), mecloqualone (inn), methaqualone (inn) and zipeprol (inn); salts thereof
29335910Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: - other: aminophylline (cordophylin)
29335920Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: - other: trimethoprim
29335930Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: - other: diethyl carbamazine citrate
29335940Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: - other: 1-amino-4-methyl piperazine
29335990Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: - other: other
29336100Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure: melamine
29336910Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure: - other: cyanuric acid and its salts
29336990Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure: - other: other
29337100Lactams: 6- hexanelactam (epsilon-caprolactam)
29337200Lactams: clobazam (inn) and methyprylon (inn)
29337900Lactams: other lactams
29339100Other: alprazolam (inn), camazepam (inn) chloridiazepoxide (inn), clonazepam (inn), clorazepate, delorazepam (inn), diazepam (inn), estazolam (inn), ethyl loflazepate (inn), fludiazepam (inn), flunitrzepam (inn), flurazepam (inn), halazaepam (inn), lorazepam (inn), lormetazepam (inn), mazindol (inn), medazepam (inn), midazolam (inn), nimetazepam (inn), nitrazepam (inn), nordazepam (inn), oxazepam (inn), pinazepam (inn), prazepam (inn), pyrovalerone (inn), tamazepam (inn), tetrazepam (inn) and triazolam (inn); salts thereof
29339900Other: other


GST rate guide for this chapter

Most organic chemicals are taxed at 18%. Some items, such as certain bulk drug intermediates, can have other rates.


GST rates depend on the exact description of the goods in the rate schedules, not only on the HSN code. Some goods under the same heading are taxed at different rates, and conditions or exemptions can apply. Confirm the rate for your product before you raise invoices.


Frequently asked questions


How many digits of the HSN code must I show on a GST invoice?


Businesses with aggregate turnover of up to ₹5 crore in the previous year must show at least a 4-digit HSN code on B2B invoices. Businesses with turnover above ₹5 crore must show a 6-digit code on all invoices. The full 8-digit code is used for imports and exports.


What is the difference between an HSN heading and an 8-digit HSN code?


The first 2 digits are the chapter, 4 digits are the heading and 6 digits are the subheading under the international Harmonized System. India adds 2 more digits for a more precise tariff item, giving the 8-digit code used in customs and GST.


What happens if I use the wrong HSN code?


A wrong HSN code can lead to tax being charged at the wrong rate, mismatches in GSTR-1 and the HSN summary, and notices with interest and penalty. If you are unsure about classification, a CA can review it before you file.


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