Q3HSN Code 2931
Other organo-inorganic compounds — organic chemicals
Other organo-inorganic compounds
GST rate
| Gibberellic acid | 5% |
| All organic chemicals other than giberellic acid | 18% |
Codes under 2931
| Code | Description | GST rate |
|---|---|---|
| 2931 00 | Other organo-inorganic compounds — organic chemicals | Varies |
| 2931 00 10 | Other organo-inorganic compounds - other organo-inorganic compounds: organo-mercury compounds — organic chemicals | Varies |
| 2931 00 41 | Phosphonic acid,methyl - | Varies |
| 2931 00 42 | Phosphonic acid,ethyl | Varies |
| 2931 00 43 | Phosphonic acid,propyl | Varies |
| 2931 00 44 | Phosphinic acid,methyl- | Varies |
| 2931 00 51 | Phosponic acide,[methyl-(5-ethyl-2-methyl 2-oxido- 1,3,2-dioxaphosphorinan-5-yl) methyl]ester | Varies |
| 2931 00 52 | Phosphonic acide,[methyl-bis (5-ethyl-2-methyl 2-oxido- 1,3,2-dioxaphosphorinan-5-yl) methyl] ester | Varies |
| 2931 00 53 | Phosphonic acid,methyl,dimethyl ester | Varies |
| 2931 00 54 | Phosphonic acid propyl dimethyl ester | Varies |
| 2931 00 55 | Phosphonic acid ethyl-diethyl ester | Varies |
| 2931 00 56 | Phosphonochloridic acid methyl-,methyl ester | Varies |
| 2931 00 57 | Phosphonous acid- methyl diethyl ester | Varies |
| 2931 00 61 | 1 propanaminium n,n,n trimethyl 3-[1-oxo-9-octadecenyl amino] -(z)-methyl methyl phosphonate | Varies |
| 2931 00 62 | O,o-dimethyl methyl phosphonate | Varies |
| 2931 00 71 | Phosphonothioic dichloride,ethyl- | Varies |
| 2931 00 72 | Phosphonic dichloride,methyl | Varies |
| 2931 00 73 | Phosphonous dichloride,methyl- | Varies |
| 2931 10 | Tetramethyl lead and tetraethyl lead: | Varies |
| 2931 10 10 | Tetramethyl lead | Varies |
| 2931 10 20 | Other organo-inorganic compounds-tetramethyl lead and tetraethyl lead---tetraethyl lead — tetramethyl lead and tetraethyl lead | Varies |
| 2931 10 90 | Tetraethyl lead | Varies |
| 2931 20 | Tributyltin compounds | Varies |
| 2931 31 00 | Dimethyl methylphosphonate | Varies |
| 2931 32 00 | Dimethyl propylphosphonate | Varies |
| 2931 33 00 | Diethyl ethylphosphonate | Varies |
| 2931 34 00 | Sodium 3-(trihydroxysilyl)propyl methylphosphonate | Varies |
| 2931 35 00 | 2, 4, 6-tripropyl-1, 3, 5, 2, 4, 6-trioxatriphosphinane 2, 4, 6-trioxide | Varies |
| 2931 36 00 | (5-Ethyl-2-methyl-2-oxido-1, 3, 2-dioxaphosphinan-5-yl)methyl methylphosphonate | Varies |
| 2931 37 00 | Bis[(5-ethyl-2-methyl-2-oxido-1, 3, 2-dioxaphosphinan-5-yl) methyl] methylphosphonate | Varies |
| 2931 38 00 | Salt of methylphosphonic acid and (aminoiminomethyl)urea (1 1) | Varies |
| 2931 41 | Dimethyl methylphosphonate | Varies |
| 2931 42 | Dimethyl propylphosphonate | Varies |
| 2931 43 | Diethyl ethylphosphonate | Varies |
| 2931 44 | Methylphosphonic acid | Varies |
| 2931 45 | Salt of methylphosphonic acid and (aminoiminomethyl) urea (1: 1) | Varies |
| 2931 46 | 2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide | Varies |
| 2931 47 | (5-Ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate | Varies |
| 2931 48 | 3,9-Dimethyl-2,4,8,10-tetraoxa-3,9- diphosphaspiro [5.5] undecane 3,9-dioxide | Varies |
| 2931 49 | Other organo-inorganic compounds › Other | Varies |
| 2931 49 10 | Sodium 3-(trihydroxysilyl) propyl methylphosphonate | Varies |
| 2931 49 20 | Bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate | Varies |
| 2931 49 30 | Glyphosate (ISO), fosetyl-al, glufosinate ammonium, glyphosate potassium salt | Varies |
| 2931 49 40 | Butyl methylphosphinate | Varies |
| 2931 49 50 | BIS (1-methylpentyl) methylphosphonate | Varies |
| 2931 49 91 | Containing a phosphorus atom to which one methyl, ethyl, n-propyl or isopropyl group is bonded but no further carbon atoms — organic chemicals | Varies |
| 2931 51 | Methylphosphonic dichloride | Varies |
| 2931 52 | Propylphosphonic dichloride | Varies |
| 2931 53 | O-(3-chloropropyl) o-[4-nitro-3-(trifluoromethyl) phenyl] methylphosphonothionate | Varies |
| 2931 54 | Trichlorfon (ISO) | Varies |
| 2931 59 | Other organo-inorganic compounds › Other | Varies |
| 2931 59 10 | P-alkyl (<=C10, incl. Cycloalkyl) n-(1-(dialkyl (<=C10, incl. Cycloalkyl) amino))alkylidene (h or <=C10, incl. Cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated salts | Varies |
| 2931 59 20 | Methyl- (BIS (diethylamino)methylene)phosphonamidofluorid ate | Varies |
| 2931 59 31 | Ethephon | Varies |
| 2931 90 | Other organo-inorganic compounds › Other | Varies |
| 2931 90 10 | Other organo-inorganic compounds -other---organo arsenic compounds — organic chemicals | Varies |
| 2931 90 11 | Methylarsonic acid and its salt | Varies |
| 2931 90 12 | Cacodylic acid and its salt | Varies |
| 2931 90 13 | P-aminophenylarsonic acid and its salt | Varies |
| 2931 90 14 | Amino-hydroxyphenylarsonic acids, their formyl and acetyl derivatives and their salts | Varies |
| 2931 90 15 | Arsenobenzene and its derivatives | Varies |
| 2931 90 20 | Organo-silicon compounds | Varies |
| 2931 90 30 | O-iodosobenzoic acid | Varies |
← Chapter 29: Organic chemicals and chemical compounds
Related HSN codes
Frequently Asked Questions
What is the HSN code for other organo-inorganic compounds — organic chemicals?
The HSN code for other organo-inorganic compounds — organic chemicals is 2931, under Chapter 29 (Organic chemicals and chemical compounds).
What is the GST rate on other organo-inorganic compounds — organic chemicals?
It depends on the specific item: gibberellic acid is 5%; all organic chemicals other than giberellic acid is 18%.
How many digits of the HSN code go on a GST invoice?
It depends on your turnover in the previous financial year: businesses above ₹5 crore generally show 6 digits (8 for certain specified goods), and smaller businesses show 4 digits on B2B invoices. Check the current e-invoicing/HSN notification for the exact threshold that applies to you.
Rates as per Notification No. 9/2025-Central Tax (Rate), as amended, as of 7 October 2026. For guidance only — verify with your tax advisor.