CAS number
CAS 121-43-7 trimethyl borate
CAS 121-43-7 · CAS 7632-04-4 · CAS 10332-33-9 · CAS 10486-00-7 · CAS 11138-47-9 · CAS 12040-72-1 · CAS 13517-20-9 · CAS 15120-21-5 · CAS 37244-98-7 · EC 204-468-9 · EC 231-556-4 · EC 234-390-0 · EC 239-172-9 · Index No 005-005-00-1
Where CAS 121-43-7 appears: every table entry that prints it among its identifiers, in the newest version of each act this record holds, and every recorded change to those entries. Many entries name a group of substances and print no number, so absence here is not absence from the law. Not legal advice.
Where it appears now
CLP Annex VI section 3, Index No 005-005-00-1
Last changed in the version in force , by Regulation (EU) 2024/2564, the act that change names · Annex VI on this site
| Index No | Chemical name | EC No | CAS No | Classification | Labelling | Specific Conc. Limits, M-factors and ATEs | Notes | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Hazard Class and Category Code(s) | Hazard statement Code(s) | Pictogram, Signal Word Code(s) | Hazard statement Code(s) | Suppl. Hazard statement Code(s) | ||||||
| 005-005-00-1 | trimethyl borate | 204-468-9 | 121-43-7 | Flam. Liq. 3 Repr. 1B Acute Tox. 4* | H226 H360FD H312 | GHS02 GHS08 GHS07 Dgr | H226 H360FD H312 | 11 | ||
CLP Annex VI section 3, table 2, Index No 005-005-00-1
No change to this entry since the first version the record holds, in force 1 December 2010. · Annex VI on this site
| Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Concentration Limits | Notes |
|---|---|---|---|---|---|---|---|
| 005-005-00-1 | trimethyl borate | 204-468-9 | 121-43-7 | R10 Xn; R21 | Xn R: 10-21 S: (2-)23-25 |
Cosmetics Regulation Annex II, Reference number 1397
Last changed in the version in force , by Regulation (EU) 2026/78, the act that change names · Annex II on this site
| Reference number | Substance identification | ||
|---|---|---|---|
| Chemical name/INN | CAS number | EC number | |
| a | b | c | d |
| 1397 | Perboric acid (H3BO2(O2)), monosodium salt trihydrate [1] | 13517-20-9 [1] | 239-172-9 [1] |
| Perboric acid, sodium salt, tetrahydrate [2] | 37244-98-7 [2] | 234-390-0 [2] | |
| Perboric acid (HBO(O2)), sodium salt, tetrahydrate [3] | 10486-00-7 [3] | — [3] | |
| Sodium peroxoborate, hexahydrate [4] | — [4] | — [4] | |
| Sodium perborate [5] | 15120-21-5 [5] | 239-172-9 [5] | |
| Sodium peroxometaborate; sodium peroxoborate [6] | 7632-04-4/10332-33-9/10486-00-7 [6] | 231-556-4 [6] | |
| Perboric acid, sodium salt [7] | 11138-47-9 [7] | 234-390-0 [7] | |
| Perboric acid, sodium salt, monohydrate [8] | 12040-72-1 [8] | 234-390-0 [8] | |
| Perboric acid (HBO(O2)), sodium salt, monohydrate [9] | 10332-33-9 [9] | — [9] | |
| Trimethyl borate | 121-43-7 [10] | 204-468-9 [10] | |
Cosmetics Regulation Annex II, Reference number 1764
Last changed in the version in force , by Regulation (EU) 2026/78, the act that change names · Annex II on this site
| Reference number | Substance identification | ||
|---|---|---|---|
| Chemical name/INN | CAS number | EC number | |
| a | b | c | d |
| 1764 | Trimethyl borate | 121-43-7 | 204-468-9 |
Look up a number
Type a CAS or EC number, with or without its hyphens, or an Index No into the search box at the top of the page: it reads 50000 as CAS 50-00-0. Every number is also listed by act on the substances page.
Its history
· amended · CLP Annex VI section 3, Index No 005-005-00-1
Recorded in the version in force , by Regulation (EU) 2024/2564, the act that change names. The change on its version page
| Identifiers | Version | Index No | Chemical name | EC No | CAS No | Classification | Labelling | Specific Conc. Limits, M-factors and ATEs | Notes | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hazard Class and Category Code(s) | Hazard statement Code(s) | Pictogram, Signal Word Code(s) | Hazard statement Code(s) | Suppl. Hazard statement Code(s) | ||||||||
| Index No 005-005-00-1CAS 121-43-7EC 204-468-9 | Before | 005-005-00-1 | trimethyl borate | 204-468-9 | 121-43-7 | Flam. Liq. 3
Acute Tox. | H226 H312 | GHS02
GHS07
| H226 H312 | |||
| After | 005-005-00-1 | trimethyl borate | 204-468-9 | 121-43-7 | Flam. Liq. 3 Repr. 1B Acute Tox. 4* | H226 H360FD H312 | GHS02 GHS08 GHS07 Dgr | H226 H360FD H312 | 11 | |||
· amended · Cosmetics Regulation Annex II, Reference number 1397
Recorded in the version in force , by Regulation (EU) 2026/78, the act that change names. The change on its version page
| Identifiers | Version | Reference number | Substance identification | ||
|---|---|---|---|---|---|
| Chemical name/INN | CAS number | EC number | |||
| a | b | c | d | ||
| Reference number 1397CAS 10332-33-9CAS 10486-00-7CAS 11138-47-9CAS 12040-72-1CAS 121-43-7CAS 13517-20-9CAS 15120-21-5CAS 37244-98-7CAS 7632-04-4EC 204-468-9EC 231-556-4EC 234-390-0EC 239-172-9 | Before | 1397 | 239-172-9 [1] | ||
| After | 1397 | Perboric acid (H3BO2(O2)), monosodium salt trihydrate [1] | 13517-20-9 [1] | 239-172-9 [1] | |
| Perboric acid, sodium salt, tetrahydrate [2] | 37244-98-7 [2] | 234-390-0 [2] | |||
| Perboric acid (HBO(O2)), sodium salt, tetrahydrate [3] | 10486-00-7 [3] | — [3] | |||
| Sodium peroxoborate, hexahydrate [4] | — [4] | — [4] | |||
| Sodium perborate [5] | 15120-21-5 [5] | 239-172-9 [5] | |||
| Sodium peroxometaborate; sodium peroxoborate [6] | 7632-04-4/10332-33-9/10486-00-7 [6] | 231-556-4 [6] | |||
| Perboric acid, sodium salt [7] | 11138-47-9 [7] | 234-390-0 [7] | |||
| Perboric acid, sodium salt, monohydrate [8] | 12040-72-1 [8] | 234-390-0 [8] | |||
| Perboric acid (HBO(O2)), sodium salt, monohydrate [9] | 10332-33-9 [9] | — [9] | |||
| Trimethyl borate | 121-43-7 [10] | 204-468-9 [10] | |||
· added · Cosmetics Regulation Annex II, Reference number 1764
Recorded in the version in force , by Regulation (EU) 2026/78, the act that change names. The change on its version page
| Identifiers | Reference number | Substance identification | ||
|---|---|---|---|---|
| Chemical name/INN | CAS number | EC number | ||
| a | b | c | d | |
| Reference number 1764CAS 121-43-7EC 204-468-9 | 1764 | Trimethyl borate | 121-43-7 | 204-468-9 |
Sources
- CLP: every version the record holds; rows read from EUR-Lex consolidated version 02008R1272-20270101, in force 1 January 2027 (external, EUR-Lex)
- Cosmetics Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02009R1223-20260518, in force 18 May 2026 (external, EUR-Lex)