CAS number
CAS 100-97-0 Methenamine
CAS 100-97-0 · EC 202-905-8 · Index No 612-101-00-2
Where CAS 100-97-0 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 612-101-00-2
Last changed in the version in force , by Regulation (EC) No 790/2009, 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) | ||||||
| 612-101-00-2 | methenamine; hexamethylenetetramine | 202-905-8 | 100-97-0 | Flam. Sol. 2 Skin Sens. 1 | H228 H317 | GHS02 GHS07 Wng | H228 H317 | |||
CLP Annex VI section 3, table 2, Index No 612-101-00-2
Last changed in the version in force , by Regulation (EC) No 790/2009, the act that change names · Annex VI on this site
| Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Concentration Limits | Notes |
|---|---|---|---|---|---|---|---|
| 612-101-00-2 | methenamine; hexamethylenetetramine | 202-905-8 | 100-97-0 | F; R11 R43 | F; Xi R: 11-43 S: (2-)24-37 |
Cosmetics Regulation Annex V, Reference number 30
No change to this entry since the first version the record holds, in force 11 July 2013. · Annex V on this site
| Reference number | Substance identification | Conditions | Wording of conditions of use and warnings | |||||
|---|---|---|---|---|---|---|---|---|
| Chemical name/INN | Name of Common Ingredients Glossary | CAS number | EC number | Product type, Body parts | Maximum concentration in ready for use preparation | Other | ||
| a | b | c | d | e | f | g | h | i |
| 30 | Methenamine | Methenamine | 100-97-0 | 202-905-8 | 0,15 % | |||
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 612-101-00-2
Recorded in the version in force , by Regulation (EC) No 790/2009, the act that change names. The change on its version page
| Identifiers | Version | Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Specific Conc. Limits, M-factors | 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 612-101-00-2CAS 100-97-0EC 202-905-8 | Before | 612-101-00-2 | methenamine; hexamethylenetetramine | 202-905-8 | 100-97-0 | Flam. Sol. 2
| H228
| GHS02
| H228
| |||
| After | 612-101-00-2 | methenamine; hexamethylenetetramine | 202-905-8 | 100-97-0 | Flam. Sol. 2 Skin Sens. 1 | H228 H317 | GHS02 GHS07 Wng | H228 H317 | ||||
· amended · CLP Annex VI section 3, table 2, Index No 612-101-00-2
Recorded in the version in force , by Regulation (EC) No 790/2009, the act that change names. The change on its version page
| Identifiers | Version | Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Concentration Limits | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Index No 612-101-00-2CAS 100-97-0EC 202-905-8 | Before | 612-101-00-2 | methenamine; hexamethylenetetramine | 202-905-8 | 100-97-0 | F; R11
| F; | ||
| After | 612-101-00-2 | methenamine; hexamethylenetetramine | 202-905-8 | 100-97-0 | F; R11 R43 | F; Xi R: 11-43 S: (2-)24-37 |
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)